Scope of Online Degrees in Computer Sciences

Computer Science is very broad field based on the studies of hardware and software design. Computer science covers different areas of designing, installation and maintenance of complex systems. Major subjects of the computer sciences include computer systems, maintenance of communication network and development of core digital technologies. Areas of specialties include artificial intelligence, computer vision and machine behavior. Basic aim of computer science studies is to investigate algorithms and use of computer systems to solve problems of business and government. Computer science professionals create and maintain most effective computer systems with latest technology. Computer science is one of the rapidly growing industries at present. Many universities offer associate, bachelor, masters and doctorate degrees in computer Sciences.

Major Areas of Specialization

In combination to general subjects universities offers specialization in different areas of computer sciences. These areas include software development, language development and modification, system development, algorithms, hardware maintenance, database systems, numerical analysis and information management.

Skills Earned

Online degrees in computer sciences develop number of specific skills in the students. Some important skills include the following:

o You will be able to create and apply new technology.
o Software design and analysis
o Identification of problems and solution
o Complete multitask with in defined time frame
o You will learn to work independently as well as in teams.
o Also learn how to identify errors and rectify these errors
o You will able to select the correct programming language and hardware systems to complete assigned project.
o You will effectively use operating systems, text editors and compilers in documenting of programs.

Online Degrees Available in Computer Sciences

In addition to degrees offered by traditional universities different top accredited online universities and colleges also offer online degrees in computer sciences. These degrees include Online Associate Degree in Computer Science, Online Bachelor Degree in Computer Science, Online Master Degree in Computer Science and Online PhD Degree in Computer Science. Online education has now become a good option for many people who are not able to join traditional institutes due to some personal and financial reasons. Online Education is also beneficial for working professionals who wants to gain progress in their fields and want to upgrade careers with latest knowledge. Online degrees prove more beneficial if you also join any internship program. You can join different careers after earning online degrees in computer sciences. You can join number of different careers in the field of computer science such as software designing, computer and software sales, programming, computer system development, networking manager, computer hardware professional, computer game development, graphics designer and system manager. These are some examples of opportunities available for computer science degree holders.

Career Path for Online Degrees in Computer Sciences

Computer science consists of theoretical programming and advanced computing solutions. Computer scientists can work in three different areas.

o Computer Scientist design and build software
o Also design useful methods to solve computing problems such as storage of data in databases, transmit data over networks and new methodologies to solve security problems.
o Formulation of new and improved approaches to use

Design and Application of Software

Computer science professionals design software for various purposes including web development, interface design, security issues and mobile computing. Majority of computer science graduates join this career path. Bachelors in computer science provides gateway to enter this field of software designing and its application. Graduates can also continue their education and gain masters degree in computer sciences. You can find jobs in large or small software houses, companies providing computer services and every kind of large organization such as industry, government, banking, healthcare etc.

Develop New Ways to Use Computers

Instead of designing software computer professionals also find new ways to modernize the use of computers. This can achieve by making advancement in computer technology. Computer graduates who are involved in advance graduate work in research university, industrial research and laboratory invent new and improved ways to use computers. The basic aim of such innovations is to simplify the use of computers and computer users can enjoy using computers with new and improved devices and methods. These devices include robotics, computer vision and digital forensics. Dot-com language is the example of such progress in computer sciences.

Discover Effective Ways to Solve Computing Problems

Computing problems can be solved by developing and applying computer science theories and algorithms. Computer science professionals make use of these two i.e. theories and algorithms to discover best possible solution of severe computing problem. To join this field as career students are required to have graduate degree to Ph.D. level with current working experience in a research university, industrial research and development laboratory.

The basic aim of computer science is to explore algorithms, design efficiency and application of computer systems to solve the problem of businesses and government organizations. Computer professionals maintain and formulate effective ways with latest technology. Computer science is rapidly growing industry. You will have lot of opportunities to work as computer professional. Number of computer users is increasing day by day and that’s why development and maintenance of computer system has become important issue. More and more trained professionals are required to fulfill the needs of industry.

If you further need to know about any online degree in the field of computer science you can visit this web site.

http://www.computersciencedegree.ws/

Article Source: http://EzineArticles.com/expert/Sabeen_Zubair/268345

 

Breaking the Computer Buying Cycle

That New Computer Smell

If you are like most people when they go out and buy a new Personal Computer you probably get excited when you take it out of the box, turn it on and marvel at how fast it runs. When a computer is new it always seems to run faster and boot up quicker than your old computer. The applications and games seem to run without any slow down and when you get on the internet the pages load instantly on the screen, and you can quickly surf from one website to another. Overtime though, your computer can slow down and not run as quickly as it did when it was new.

This slow down can occur for a variety of reasons and when it happens it can be frustrating and spoil your computing experience. Often times when this happens it can be corrected by either cleaning up your hard drive, or running some diagnostics. Perhaps the computer has a virus and once you remove the virus, performance can be restored. What do you do though if you have done all those things and your computer is still running slow?

If your computer is running slow even after you have removed any viruses and attempted to improve system performance, it could mean that the demands you are now placing on your computer have exceeded the computer’s capability.

As we use our computers we tend to install new software applications and attempt to run more applications simultaneously. The new software we install can require greater computer resources such as more computer memory and a faster CPU, or central processing unit to run the software applications or games properly.

If you are like me you like to have multiple software applications running or multiple internet browser windows open at the same time and that can utilize greater amounts of computer resources as well. The more resources you use, the slower the computer will run.

This is a constant problem in computing because computer technology doubles roughly every 18 months. In a demand for more feature rich software applications, software developers create more resource consuming software programs. To meet the increased demands of the software, computer manufacturers continue to build faster, more expensive computers. This, in my opinion, is a vicious cycle where in order to maintain a fast and enjoyable computing experience, the computer user is forced to go out and buy a new computer every few years.

Fortunately for me I have never had to worry about that problem. I am a certified computer professional and have been building and repairing computers for over 15 years. When I want a faster computer I do not go out and buy a new expensive computer. I have learned how to break the new computer buying cycle by upgrading my computer. By upgrading my computer rather than buying new, I can simply make myself a faster computer at a fraction of the cost.

You can break the computer buying cycle too and you do not have to be a computer professional like me to do it. You only need to know a few things about computers, be handy with a screw driver and be able to follow a few simple instructions; but before you begin to think about upgrading your computer, it might be important to get a brief overview on how a computer works.

Computer Basics

Computers are made up of a combination of hardware and software working together. When you aren’t familiar with how a computer functions then they can seem very complex. You can reduce that complexity, once you understand how a computer works at a basic level.

At its most basic level a computer receives input and produces output. A computer receives input through input devices such as the keyboard and mouse (hardware). Every time we click the mouse on a link or move the mouse across the screen we are giving the computer input or an instruction to do something.

The computer receives the input as an electronic signal created by the mouse click or keystroke on the keyboard. This signal is transmitted through the computer and is converted into digital data where it can be interpreted as an instruction by the operating system, software application or game.(software)

The computer processes digital instruction data and produces output as either an image or words on the computer screen or perhaps as a printout on a printer.

What makes a computer fast is its ability to receive input, and produce output quickly. There are several components a computer needs in order to function but there are three primary components that directly affect how fast a computer can operate.

The three primary computer components which handle the processing of input and make a computer fast are the:

  • Motherboard or Main System board
  • CPU or Central Processing Unit
  • RAM or Random Access Memory

The Motherboard

Without getting too technical, the Motherboard is the computer component that connects all the hardware together on the computer. You could think of the Motherboard as a data freeway that links together all the components of the computer and allows them to transmit data between each other and and communicate.

Every computer component on the computer connects to the Motherboard either by being connected directly to the Motherboard or connecting via a data cable. The devices or components that connect to the Motherboard are the CPU, RAM Memory, Hard Drive, CD ROM/DVD drive, Video Card, Sound Card, Network Card, Modem, Key Board, Mouse and Monitor.

There are additional peripheral devices which can connect to the Motherboard as well through a variety of data ports which are connected to the Motherboard such as a printer, digital camera, microphone, and even a HDTV. These devices can connect to the Motherboard using one of several ports such as a USB, Parallel, Fire-Wire, SATA (Serial-ATA), or HDMI (High Definition Multimedia Interface) port.

In short the Motherboard provided the data communication infrastructure which allows communication between all the devices. What makes one Motherboard faster than another is the volume of data it can support being transmitted across what is called it’s data BUS and the speed at which it can transmit the data. One way to think of it is in terms of a street. Think of the data bus as a street and the data are like cars driving down the street. Older Motherboards communication was the equivalent of a two way two lane street with a speed limit of 25 MPH. Today the new Motherboards are like 8 lane highways with 200MPH speed limits.

New Motherboards are faster because they can allow more data traffic at higher speeds.

The CPU

The CPU or Processor is the brain of the computer. The CPU carries out all the instructions that you in conjunction with the Operating System, like Windows XP or Windows 7, asks it to do. CPUs can only carry out one instruction at a time but they do it so fast it seems like they are doing multiple tasks at one time or “Multitasking”.

Newer CPUs are faster because their “clock speed” or “clock cycle” is faster. The clock speed is the speed at which a CPU can carry out instructions. You can think of clock speed like the timing of a metronome, the device that helps musicians keep the right musical time. A metronome has a hand on the front of it which swings back and forth at a timing interval you set. As it swings back and forth it ticks like a clock. Like the metronome the CPU also ticks at a set interval but a CPU ticks at an incredibly fast rate which is measured in Mega or Gigahertz. The CPU carries out an instruction on every tick of its clock cycle.

New CPUs can not only carry out instructions at very high clock speeds but they can also be made up of multiple CPU Cores. Each Core can carry out its own instructions. When you have a Dual Core CPU it can carry out two instructions at the same time and a Quad Core CPU can carry out four. There are even six Core CPUs out now and like the newer Motherboards these CPUs also have a larger Data BUS to send and receive data faster through the Motherboard enhancing the computers overall performance.

RAM Memory

RAM or Random Access Memory is what stores all the instructions you have asked the computer to carry out. Every time we interact with our computer we are creating instruction data for the CPU to process and even the simplest interaction, like moving the mouse across the screen, requires many single instructions the CPU must carry out. You can imagine that playing a computer game or running an application like Adobe Photo shop can create a tremendous amount of instructions for the CPU. The CPU is fast and can execute a lot of instructions quickly but it can’t do them all at once which is why we need a place to store the instructions until they can be processed. This is why RAM was created.

RAM is basically the storage place for all the instructions that are waiting to be executed by the CPU. You can sometimes tell when you don’t have enough RAM when you have clicked on the mouse or hit the enter key to initiate a program and the hour glass just sits there spinning on the screen. It can appear that our computer has locked up or froze but what is actually happening is the computer is completing the series of instructions it has been given before it can perform any further instructions. When this happens we usually see it as the computer briefly locking up. It is also very frustrating.

The best way to resolve this problem is by simply adding more RAM to your computer. Adding more RAM is possibly the easiest way to increase the performance of your computer. Increasing the amount of RAM in your computer can help your computer run faster because it allows your computer store more instructions. This lets the computer carry out a lot of instructions while you continue to do your work and it reduces the computer freeze ups.

The speed of the RAM you use can also help the computer. If you use RAM that has a faster Data Bus speed it can send the instructions it is storing to the CPU at a faster rate. The faster the CPU gets the instructions the faster it can carry them out and the faster your computer will run.

The amount and type you can use is dictated by the type of CPU and Motherboard you use. The Bus speed of the CPU and Motherboard as well as the capacity of RAM the Motherboard can recognize will determine what type of RAM and how much you can use.

Some Motherboards will allow you to install as much as 32GBs of RAM and most Motherboards will recognize multiple Bus speeds so you can use several different types of RAM. Generally speaking the faster the BUS speed and the larger storage capacity of the RAM, the faster your computer will perform. The important thing to remember though is that with larger capacity and speed comes higher price.

What’s nice about upgrading RAM is most Motherboards can accommodate several different speeds and capacities of RAM so you can start out with a slower speed and smaller capacity, which will be less expensive reducing your initial upgrade cost and then later down the road you can upgrade your RAM to a larger capacity and high speed.

Replacing the Motherboard, CPU and RAM is actually a lot easier than you may think. The CPU and RAM are directly connected to the motherboard so you can replace all three components at the same time by simply swapping out the motherboard.

To do this you must first determine what kind of form factor of motherboard your current computer supports.

The Motherboard Form Factor

Many computer manufacturers such as HP, Compaq, Dell, Gateway, eMachine, and Acer build their computers based on 4 primary motherboard form factors or design specifications and they are:

  • ATX = Full Size Motherboard generally found in full size Desktop computers and Towers
  • Micro-ATX = Mid Size motherboard found in Mid Tower and Smaller Desktops
  • Mini-ATX = Small Motherboard found in Mid Towers, Smaller Desktops
  • Mini-ITX = Newest motherboards very small size found in new smaller towers and desktops

These form factors refer to the size of the Motherboard itself. The computer case is designed to accommodate a specific size of Motherboard. Once you have determined which form factor your computer model is, then all you need to do is purchase the correct form factor Motherboard that fits your computer models case.

It would work like this. Let’s say you have an HP Pavilion 750n desktop computer. This is an older computer with a single core processor. Nice computer when it first came out but very slow by today’s standards. You decide that you want to make it faster by upgrading it to a Quad Core CPU but you need to determine if you can upgrade it.

You can determine whether or not you can upgrade that particular computer by going to the HP support website. On the site you would type in your computer model and look at the hardware specifications for that computer. HP will list the form factor information in the specifications guide. Having done this many times, I already know the 750n uses a Micro-ATX form factor.

Each computer manufacturer I named has a support site on their webpage where you can go to determine your models form factor. You can also do a search on Yahoo, Google, or Bing and ask what form factor your computer model is. If that doesn’t work simply email me or leave a comment on this article and I can help you locate it.

Once you know the type of form factor your computer model supports you are now ready to decide what performance level you would like to upgrade your computer to.The performance level of the computer is generally dictated by the CPU it uses. You may recall I indicated the CPU is often referred to as the brain of the computer because it processes all the instructions and it sets the computers overall speed based on it’s clock speed.Since the computers overall speed is set by the CPU, you typically start your upgrade by determining the CPU performance level you want.

How you decide which performance level you would like to upgrade to can be based on how you use your computer and how much you want to spend to upgrade it. Generally speaking if you only use your computer to send and receive email, browse the web, and save and share digital images from a digital camera, then you may only need to upgrade to a Dual Core CPU to significantly improve you computing experience.

If you play lots of games, burns DVDs, edit movies or sound files, and work with high resolution images or graphics, then you may want to select a Quad Core CPU to increase performance and improve your computing experience.

From a cost perspective you can expect to pay more for a faster CPU than you would for a slower CPU and Quad Core CPUs are generally more expensive than Dual Cores. As a rule I believe you should purchase as much as you can for as little as possible that way you get the most for your money and you won’t have to upgrade again for quite a while.

When you are ready to select your CPU you will have choices based on manufacturer and type and there are also some differences between the various types of CPUs from each manufacturer which you should be aware of.

There are three primary CPU manufacturers Intel, AMD and Motorola, but for the purpose of this article we are only going to focus on Intel and AMD. Motorola is primarily responsible for making CPUs for Apple Computers. Apple computers, are a proprietary computer model and it can be more difficult and more costly to upgrade an Apple computer.

This article is focused on helping the budget conscious, who own what is generally referred to as an IBM compatible computer, upgrade their computer easily and inexpensively. IBM compatible computers are identified as those computers which primarily run a Microsoft Windows based operating system such as Windows XP or Windows 7. Intel and AMD manufacture CPUs that support IBM compatible computers so those are the two manufacturers we will focus on.

For the purpose of this article I am not going to go into great detail about the differences between Intel and AMD CPUs. There is already a significant amount of detailed information available on the internet which describes each manufacturers CPU chip architecture, as well as gives side by side comparison.

I would invite you to do a little research on how each manufacturers chips are designed and then review a website that benchmarks each CPUs performance. There are many links on CPU design, comparisons and reveiws on the weband this can help you make your CPU choice.

The prevailing sentiment regarding AMD vs. Intel is that both CPUs, in either Dual or Quad Core configuration, perform similarly with Intel being slightly faster. Intel CPUs have always been associated with executing business applications quickly while AMD CPUs run multimedia applications quickly. As you research their benchmark scores you will see Intel on a graph seems to dramatically out perform AMD but when you look at the duration of time between the two it is minimal.

Where you will see a significant difference between the two manufacturers is in cost. AMD CPUs are almost always less expensive than Intel CPUs. The question I always ask my clients is, “Is a 4 second faster speed difference worth an extra $200 or $300 dollars more by buying an Intel CPU?” To me it is not.

I am looking for an overall performance increase compared to what I am currently using. Once you upgrade your computer you are not going to be comparing it to another computer of equal performance, you will be comparing it to the speed of your last computer. If after your upgrade, you find your computer runs significantly faster than your last computer and it didn’t cost much for you to achieve that performance increase, you will be happy with your upgrade and that is what is important.

CPU Cache

Earlier I indicated that RAM stores all the instruction data being transmitted to the CPU and throughout the computer. The CPU Cache is another form of high speed memory only it is specifically devoted to the CPU. It has been shown that a CPU can process data faster if more of the data it must process can be stored on memory located closer to the CPU itself.

All CPUs come with a cache but some newer CPUs will come with an additional cache that is faster and can hold more data closer to the CPU. Typically CPUs operating at a higher clock speed and having an additional, faster cache will offer higher performance.

A good example of this is the difference between the AMD Athlon and Phenom Series of CPUs. Both the Athlon and Phenom series come in Dual and Quad Core configurations but the Phenoim Series has an additional L3 cache making the CPU faster. It also makes a Phenom series CPU more expensive than the Athlon Series.

Another interesting tidbit is there is now a version II for both the Athlon and Phenom Series. The version II offers a more faster cache hence both CPUs are supposed to be faster than their predecessors however the benchmark numbers show a relatively small increase in performance.

Be sure to do a little research on the differences between the AMD and Intel CPUs and select the one you feel will be appropriate for your computing needs while meeting your budget goals. Once you have chosen the CPU you want you will then be ready to select the Motherboard that supports not only your CPU but your computer form factor as well.

One last thing regarding CPUs are both AMD and Intel have different CPU form factors so when you are selecting a Motherboard for the form factor that meets your computers specifications you also need to select the one that fits your CPU choice. This may seem complicated but it is not that difficult once you start looking at the Motherboard and CPU combinations.

The resellers I have showed you have filtering options on their web pages which allow you to select Motherboards that can support either AMD or Intel. You can also filter by both CPU and computer form factor as well which can help you narrow down your decision making.

Once you have made a decision on the CPU, you want to select the Motherboard that will support the CPU you have chosen. As far as Motherboards go there are several major manufactures of Motherboards and they all produce the 4 main types of Motherboard form factors. The major manufactures are:

  • ASUS
  • Biostar
  • Gigabyte
  • MSI
  • Foxconn
  • ECSJetway
  • Zotac

This may seem like a lot to choose from but as you begin to filter on the CPU type you can narrow down your focus and make selecting the right Motherboard easier.

Each motherboard will come with common features that are necessary for standard computer operations and some can come with additional features that may or may not be beneficial to you. The primary thing to remember about the Motherboard is that all of the components connect too it and you can choose to customize your computer upgrade as much or as little you want depending on the Motherboard you purchase.

For example, you can purchase a Motherboard which has the video and sound card integrated into the board. This saves you both time and money because it eliminates the need for you to choose a video or sound card, but if you want a specific video or sound card, you can select a Motherboard that does not come with those integrated components and then pick the video and sound card you would like to install as add in cards onto the Motherboard.

Here is a list of common Motherboards features:

  • Keyboard and Mouse input often referred to as a PS2 connector
  • USB – Universal Serial Bus ports for connecting computer peripherals such as (Keyboard, Mouse, Printer, Digital Camera, external Hard Drive etc…)
  • Parallel Printer Port (not as much in newer motherboards as printers use USB)
  • Local Area Network or LAN connection for a network or internet connection
  • Dial-up Modem (not as common in newer boards due to high speed internet connections)

Optional Motherboard Features:

  • 1394 or Fire-wire connection (higher speed data connection)
  • External SATA or Serial-ATA connection (higher speed data connection designed to connect external SATA devices such as a Hard Drive)
  • HDMI – High-Definition Multimedia Interface to connect an HD Monitor or TV, or to an external High Definition Audio component

We touched on RAM earlier and we know that the RAM you choose must be supported by the CPU and Motherboard you choose. To make it simple it breaks down like this when upgrading. The CPU determines the type of Motherboard you have to choose and your computer model determines the type of Motherboard form factor you select.

The Motherboard will dictate what type of RAM you will be able to use so that will make your selection easier. The only thing you will have to decide when it comes to RAM, is the size of RAM meaning the amount of Gigabytes, Gigs or GBs of RAM you choose and the RAM speed you select.

One other thing you must be aware of is the newer Operating Systems such as Windows Vista and Windows 7 require a minimum of 2GBs of RAM to run properly so you will want to select at least 2GBs of RAM when you upgrade. Knowing this can make your decision regarding the amount of RAM pretty straight forward. As far as the speed of RAM you select that again will depend on the speeds the Motherboard will support, the amount of performance you want and how much you are willing to spend.

As far as determining the speed of RAM your Motherboard will support that is not difficult to determine. As you begin to look at Motherboards you will see they clearly specify the type and speed of RAM they support.

I have covered a lot of information up to this point and I hope you have a better understanding of what is required for you to be able to identify the Motherboard, CPU and RAM components you would need to upgrade your current computer. Buying these components and upgrading them your self is far less expensive then going out and buying a new computer and I am confident with this information as a starting point you too can save money buy upgrading the computer yourself.

There are however, two important additional pieces of information you should know before you attempt to upgrade your computer.

1. Before you upgrade your current computer you should back up all of your important data on to an external storage device such as an external hard drive, USB jump drive or burn it onto a CD or DVD.

The reason this is important is when you upgrade those components you will be forced to reinstall the operating system and that will erase all the current data on your hard drive. In additional if you don’t have an installation disk for your current operating system, you will need to purchase a new copy of Windows XP, Vista or Windows 7 to install once you have upgraded the components. This may not actually be a major concern for you if you were already considering upgrading to a newer version of Windows. Also I can help you find an inexpensive copy of the Windows operating system if you it.

2. The new components you will install in you current PC will be more advanced from a power consumption standpoint and upgrading them will most likely require you to also upgrade your power supply.

The upgrade is not expensive and is a very easy to accomplish. The type of power supply you will want to select will be roughly 400 watts at least and will need to be a 20×4 pin or 24 pin power supply. This is the type of power supply supported by the newer Motherboards. Again the Motherboard specifications will indicate the power supply requirements.

To make your computer faster all you need to do is upgrade the Motherboard, CPU and RAM. You start by identifying the type of Motherboard form factor your current computer will support, and the performance level you want to upgrade to. Then you buy the CPU that fits your performance needs along with the Motherboard and RAM that fits both your computer model and CPU specifications.

The one thing I didn’t cover is the actual installation of these components once you have purchased them and are ready to install. At a high level the process is nothing more then:

  • Unplugging the computer and disconnecting all peripheral components such as the keyboard, mouse and monitor from the case
  • Before you open the computer, discharge yourself electrically or purchase a static strap to ground yourself to the chassis, this will help you avoid static discharge which can fry a computer component.
  • Removing the side cover off the computer case
  • Disconnecting all the power cables and Data cables from the old Motherboard
  • Unscrewing and removing the old Motherboard from the case
  • Unscrewing and removing the old power supply
  • Install the new power supply
  • Install the new Motherboard into the case
  • Reconnecting all the power and data cables
  • Powering the computer back up and listening for proper post sound
  • Now you are ready to install the operating system

I know once you decide to start this process you will have many questions which is why there is one last thing I would recommend you do before you begin to upgrade you computer.

There are many do it yourself computer repair and upgrade manuals available online and they can provide you all the help you need to do your computer upgrade. Many of the books will provide you step by step explanation on how to replace just about every component on your computer and provide you with detailed diagrams so you can see how to actually perform the removal or install. I would suggest you make a small investment and purchase one of these books.

If I could recommend any do it yourself computer manual it would be “Self Computer Repair Unleashed”.This book covers all aspects of computer upgrade and repair in a clear concise format and provides full color diagrams and step by step instructions to help you through any computer upgrade or repair. I can’t recommend this book enough. I have provided a link to this book on the links page of my website below in my signature.

I thank you for reading my article and I hope it has inspired you to go out and tackle what you may have originally thought was an impossible task. You can upgrade your computer yourself and save yourself a lot of money too.

David R Doohen
http://www.djmusickaraoke.com/links
IT Professional with 15 years of experience specializing in Computer Upgrade and Repair
MCP, CCNA, Net+, Server+, A+
Check out Tech Nibble for great computer repair and upgrade content and information.
http://www.technibble.com/

Article Source: http://EzineArticles.com/expert/David_Doohen/669747

 

Choosing the Best Desktop Computer For You

Like a lot of people in the world today, you probably have a specific budget in mind when you buy a desktop computer. You may wonder, though, how to pick out the computer. What size and shape you need and with all the new technology out there, you may be unsure what to get. We are here to help you with this most difficult decision. Read on for some great insight into what to look for when purchasing a great desktop computer.

There are four different types of a PC user. Read below to find out which one you are. This will help you choose the best computer for you and your family.

General purpose user: a general purpose use desktop computer is perfect for those who like to make pictures, edit pictures, play games and surf the net. Depending on what you need a general purpose computer can range in price from $500 to $1500.

Power User: a power user computer is a computer that can be used to make and edit movies and videos. These types of computers also allow you to make digital designs and play mega games. With these computers you will typically need 2 or more hard drives and a great graphics card. These computers typically run higher in price due to the power behind the computer and the different running systems that it will include. A power user computer can range in price from $2500 to $3500 depending on what you will need to perform the types of work that you want to do on this computer.

Home Theater Enthusiast: Do you love movies and television? Why not get a computer that can handle all of your home theater needs? This type of computer is great for people who love to watch movies and television. Windows Media Center is on all of the windows programs including the new Windows 7. When considering this type of computer always keep in mind what type of media you will be playing. This will help you to decide the video card and how much memory and output you will need. You can also find surround sound for your home theater computer, which will make your home theater even more special. When purchasing this computer make sure that is has the proper DVD drive or if you desire you can get a computer with a blue ray player allowing you the maximum high definition display. This type computer can range in price from $500 to $1500 depending on what you need included with the great entertainment model computer.

Home Office Worker: this is a great computer for those who work from home. With this type of computer you do not need the massive graphics power as other computers unless you design graphics for your home office work and then you would want a computer with a higher graphics count. You will want a system with a dual power core so that you can multitask and get the work done that you need done. Windows has a great operating system in Windows 7 that is great for being able to multitask. The newest feature on Windows 7 allows you to have different windows open at one time and you are also allowed to have them up side by side. This will save you time and you will not have to worry about your computer crashing. Mac also has a great operating system for home office as well. A home computer can run in price from $500 to $2,000 depending on what you need and how you plan on using it.

There are many different features to consider when wanting to purchase any of the before mentioned computers. The main great features that you will want to consider are:

* Processor: The two most common type of processor is AMD Athlon 64 X2, or Intel Core 2 Duo processor. You will want a Duo processor if you will be doing a lot of work or something that calls for a high speed processor such as burning or making videos and DVD’s. A processor is at the most basic form the brains of your computer. The faster your processor is the better performance you will receive out of your computer.

* Memory: The memory in a desktop computer can vary due to the upcoming technology. Depending on what you need you can find a desktop that has 1G to 4G’s of memory. Memory is changing due to different technology every day. When considering the memory take into consideration what you will be using your computer for. The more pictures and videos you need to make will increase the gigabyte count. Having the maximum amount of memory allows you to have plenty of room for all those important things that you want to install on your computer.

* Hard Drive: Depending on what you will need to store on your computer, you can find the perfect hard drive. A hard drive for this type of desktop can range from 250 G to 500 G. When choosing the hard drive, keep in mind what kind of programs you want to install. If you are wanting to install games or photo editing software, it would be best to have a higher gigabyte count. This allows you to have plenty of space for these programs as well as other programs including music and videos.

* Running system: When choosing your computer you will want to pick out a operating system that will work great for you. You can choose Windows or Mac. Both are very reliable brands and will give you a great computer experience. The latest version of Windows is Windows 7 and the latest version of Mac is the Apple OS X Leopard. The feedback on both of these programs are great. You can also ask friends and family that have these running systems how they feel about them and this will help you to pick out the perfect running system for you.

* Video Card: the video card helps to control different graphics and video. The most typical video card is 128 mb and comes from NVIDIA and ATI. With ever changing technology the video card will increase in megabyte size and quality. Most computers come with this feature already installed for quality graphics.

* Keyboard: Your computer would be basically useless without a keyboard. There are several different choices of keyboard. If you have trouble with your wrists, you can find a keyboard that is ergonomic and has a wrist wrest built into the keyboard. If you do not want the headache of wires all over the place, you can purchase a wireless keyboard. A wireless keyboard gives you access to your computer without the clutter of wire.

* Mouse: The mouse is a key component in the running of your desktop computer. The mouse helps you click on links and scroll down throughout pages. A wireless mouse is the latest invention. You can move your mouse around without the constraint of wire. This is a great way to perform your task. A computer can function without a mouse but it would be very difficult to use.

* Monitor: The monitor is the most important part of the computer besides the hard drive. The monitor allows you to see images and what is on your computer. You can find average size monitors, wide screened monitors and flat screened monitors. You can even find HD monitors that deliver a even clearer pictures. The size of the monitor depends on what size you need for what you will be doing with your desktop computer. With larger screens you will have the ability to watch many different movies in television size.

* Web Camera: a web camera can be hooked up to your computer allowing you to take images and videos and save them directly to your computer. You can also video chat with people online using it with Yahoo, Skype or even Facebook. It is a great way to stay in contact with friends and family. When considering a web cam purchase, check and see what pixels that it has. The higher the pixel, the greater the image will be and less pixilated.

* Size: Desktop computers have changed in size drastically over the years and each year it seems like a smaller more compact model is being released. That is great for those of you that do not have a lot of space to store a large computer. You can find a desktop in the size you need including compact. Every year smaller and more compact computers are being released. When looking for the size, take into consideration, where you will set up your computer and how much room you will have. It would not hurt to take measurements and have these with you when you purchase your computer.

* DVD/Blue Ray: If you like to watch movies you can purchase a desktop computer that has a DVD player. This is a great way to watch your movies. When purchasing the computer make sure you check and see what regions that the DVD player can handle. This way you can enjoy movies from many different regions from around the world. Region 1 is the United States and Region 2 is the United Kingdom. So if you want a movie from across the pond you can purchase it and watch it with your desktop. If you desire high quality and high definition you can purchase a computer that is equipped with a blue ray player. This is great for watching high definition movies.

* Warranty: When purchasing a computer, you may consider purchasing an extended warranty. This will give you ease of mind in case of something happening to your computer. Always remember to register for your warranty and it will make you and your computer feel safer.

Have this guide with you when you go to purchase your new desktop. This guide will help you make a choice on what you need for your new desktop computer. Remember take into consideration all of these features and what you will be using the computer for.

Article Source: http://EzineArticles.com/expert/Beth_Mccall/518255

 

Beginner’s Guide to Computer Forensics

Introduction
Computer forensics is the practice of collecting, analysing and reporting on digital information in a way that is legally admissible. It can be used in the detection and prevention of crime and in any dispute where evidence is stored digitally. Computer forensics has comparable examination stages to other forensic disciplines and faces similar issues.

About this guide
This guide discusses computer forensics from a neutral perspective. It is not linked to particular legislation or intended to promote a particular company or product and is not written in bias of either law enforcement or commercial computer forensics. It is aimed at a non-technical audience and provides a high-level view of computer forensics. This guide uses the term “computer”, but the concepts apply to any device capable of storing digital information. Where methodologies have been mentioned they are provided as examples only and do not constitute recommendations or advice. Copying and publishing the whole or part of this article is licensed solely under the terms of the Creative Commons – Attribution Non-Commercial 3.0 license

Uses of computer forensics
There are few areas of crime or dispute where computer forensics cannot be applied. Law enforcement agencies have been among the earliest and heaviest users of computer forensics and consequently have often been at the forefront of developments in the field. Computers may constitute a ‘scene of a crime’, for example with hacking [ 1] or denial of service attacks [2] or they may hold evidence in the form of emails, internet history, documents or other files relevant to crimes such as murder, kidnap, fraud and drug trafficking. It is not just the content of emails, documents and other files which may be of interest to investigators but also the ‘meta-data’ [3] associated with those files. A computer forensic examination may reveal when a document first appeared on a computer, when it was last edited, when it was last saved or printed and which user carried out these actions.

More recently, commercial organisations have used computer forensics to their benefit in a variety of cases such as;

  • Intellectual Property theft
  • Industrial espionage
  • Employment disputes
  • Fraud investigations
  • Forgeries
  • Matrimonial issues
  • Bankruptcy investigations
  • Inappropriate email and internet use in the work place
  • Regulatory compliance

Guidelines
For evidence to be admissible it must be reliable and not prejudicial, meaning that at all stages of this process admissibility should be at the forefront of a computer forensic examiner’s mind. One set of guidelines which has been widely accepted to assist in this is the Association of Chief Police Officers Good Practice Guide for Computer Based Electronic Evidence or ACPO Guide for short. Although the ACPO Guide is aimed at United Kingdom law enforcement its main principles are applicable to all computer forensics in whatever legislature. The four main principles from this guide have been reproduced below (with references to law enforcement removed):

    1. No action should change data held on a computer or storage media which may be subsequently relied upon in court.
    1. In circumstances where a person finds it necessary to access original data held on a computer or storage media, that person must be competent to do so and be able to give evidence explaining the relevance and the implications of their actions.
    1. An audit trail or other record of all processes applied to computer-based electronic evidence should be created and preserved. An independent third-party should be able to examine those processes and achieve the same result.
  1. The person in charge of the investigation has overall responsibility for ensuring that the law and these principles are adhered to.

In summary, no changes should be made to the original, however if access/changes are necessary the examiner must know what they are doing and to record their actions.

Live acquisition
Principle 2 above may raise the question: In what situation would changes to a suspect’s computer by a computer forensic examiner be necessary? Traditionally, the computer forensic examiner would make a copy (or acquire) information from a device which is turned off. A write-blocker[4] would be used to make an exact bit for bit copy [5] of the original storage medium. The examiner would work then from this copy, leaving the original demonstrably unchanged.

However, sometimes it is not possible or desirable to switch a computer off. It may not be possible to switch a computer off if doing so would result in considerable financial or other loss for the owner. It may not be desirable to switch a computer off if doing so would mean that potentially valuable evidence may be lost. In both these circumstances the computer forensic examiner would need to carry out a ‘live acquisition’ which would involve running a small program on the suspect computer in order to copy (or acquire) the data to the examiner’s hard drive.

By running such a program and attaching a destination drive to the suspect computer, the examiner will make changes and/or additions to the state of the computer which were not present before his actions. Such actions would remain admissible as long as the examiner recorded their actions, was aware of their impact and was able to explain their actions.

Stages of an examination
For the purposes of this article the computer forensic examination process has been divided into six stages. Although they are presented in their usual chronological order, it is necessary during an examination to be flexible. For example, during the analysis stage the examiner may find a new lead which would warrant further computers being examined and would mean a return to the evaluation stage.

Readiness
Forensic readiness is an important and occasionally overlooked stage in the examination process. In commercial computer forensics it can include educating clients about system preparedness; for example, forensic examinations will provide stronger evidence if a server or computer’s built-in auditing and logging systems are all switched on. For examiners there are many areas where prior organisation can help, including training, regular testing and verification of software and equipment, familiarity with legislation, dealing with unexpected issues (e.g., what to do if child pornography is present during a commercial job) and ensuring that your on-site acquisition kit is complete and in working order.

Evaluation
The evaluation stage includes the receiving of clear instructions, risk analysis and allocation of roles and resources. Risk analysis for law enforcement may include an assessment on the likelihood of physical threat on entering a suspect’s property and how best to deal with it. Commercial organisations also need to be aware of health and safety issues, while their evaluation would also cover reputational and financial risks on accepting a particular project.

Collection
The main part of the collection stage, acquisition, has been introduced above. If acquisition is to be carried out on-site rather than in a computer forensic laboratory then this stage would include identifying, securing and documenting the scene. Interviews or meetings with personnel who may hold information which could be relevant to the examination (which could include the end users of the computer, and the manager and person responsible for providing computer services) would usually be carried out at this stage. The ‘bagging and tagging’ audit trail would start here by sealing any materials in unique tamper-evident bags. Consideration also needs to be given to securely and safely transporting the material to the examiner’s laboratory.

Analysis
Analysis depends on the specifics of each job. The examiner usually provides feedback to the client during analysis and from this dialogue the analysis may take a different path or be narrowed to specific areas. Analysis must be accurate, thorough, impartial, recorded, repeatable and completed within the time-scales available and resources allocated. There are myriad tools available for computer forensics analysis. It is our opinion that the examiner should use any tool they feel comfortable with as long as they can justify their choice. The main requirements of a computer forensic tool is that it does what it is meant to do and the only way for examiners to be sure of this is for them to regularly test and calibrate the tools they use before analysis takes place. Dual-tool verification can confirm result integrity during analysis (if with tool ‘A’ the examiner finds artefact ‘X’ at location ‘Y’, then tool ‘B’ should replicate these results.)

Presentation
This stage usually involves the examiner producing a structured report on their findings, addressing the points in the initial instructions along with any subsequent instructions. It would also cover any other information which the examiner deems relevant to the investigation. The report must be written with the end reader in mind; in many cases the reader of the report will be non-technical, so the terminology should acknowledge this. The examiner should also be prepared to participate in meetings or telephone conferences to discuss and elaborate on the report.

Review
Along with the readiness stage, the review stage is often overlooked or disregarded. This may be due to the perceived costs of doing work that is not billable, or the need ‘to get on with the next job’. However, a review stage incorporated into each examination can help save money and raise the level of quality by making future examinations more efficient and time effective. A review of an examination can be simple, quick and can begin during any of the above stages. It may include a basic ‘what went wrong and how can this be improved’ and a ‘what went well and how can it be incorporated into future examinations’. Feedback from the instructing party should also be sought. Any lessons learnt from this stage should be applied to the next examination and fed into the readiness stage.

Issues facing computer forensics
The issues facing computer forensics examiners can be broken down into three broad categories: technical, legal and administrative.

Encryption – Encrypted files or hard drives can be impossible for investigators to view without the correct key or password. Examiners should consider that the key or password may be stored elsewhere on the computer or on another computer which the suspect has had access to. It could also reside in the volatile memory of a computer (known as RAM [6] which is usually lost on computer shut-down; another reason to consider using live acquisition techniques as outlined above.

Increasing storage space – Storage media holds ever greater amounts of data which for the examiner means that their analysis computers need to have sufficient processing power and available storage to efficiently deal with searching and analysing enormous amounts of data.

New technologies – Computing is an ever-changing area, with new hardware, software and operating systems being constantly produced. No single computer forensic examiner can be an expert on all areas, though they may frequently be expected to analyse something which they haven’t dealt with before. In order to deal with this situation, the examiner should be prepared and able to test and experiment with the behaviour of new technologies. Networking and sharing knowledge with other computer forensic examiners is also very useful in this respect as it’s likely someone else may have already encountered the same issue.

Anti-forensics – Anti-forensics is the practice of attempting to thwart computer forensic analysis. This may include encryption, the over-writing of data to make it unrecoverable, the modification of files’ meta-data and file obfuscation (disguising files). As with encryption above, the evidence that such methods have been used may be stored elsewhere on the computer or on another computer which the suspect has had access to. In our experience, it is very rare to see anti-forensics tools used correctly and frequently enough to totally obscure either their presence or the presence of the evidence they were used to hide.

Legal issues
Legal arguments may confuse or distract from a computer examiner’s findings. An example here would be the ‘Trojan Defence’. A Trojan is a piece of computer code disguised as something benign but which has a hidden and malicious purpose. Trojans have many uses, and include key-logging [7], uploading and downloading of files and installation of viruses. A lawyer may be able to argue that actions on a computer were not carried out by a user but were automated by a Trojan without the user’s knowledge; such a Trojan Defence has been successfully used even when no trace of a Trojan or other malicious code was found on the suspect’s computer. In such cases, a competent opposing lawyer, supplied with evidence from a competent computer forensic analyst, should be able to dismiss such an argument.

Accepted standards – There are a plethora of standards and guidelines in computer forensics, few of which appear to be universally accepted. This is due to a number of reasons including standard-setting bodies being tied to particular legislations, standards being aimed either at law enforcement or commercial forensics but not at both, the authors of such standards not being accepted by their peers, or high joining fees dissuading practitioners from participating.

Fitness to practice – In many jurisdictions there is no qualifying body to check the competence and integrity of computer forensics professionals. In such cases anyone may present themselves as a computer forensic expert, which may result in computer forensic examinations of questionable quality and a negative view of the profession as a whole.

Resources and further reading
There does not appear to be a great amount of material covering computer forensics which is aimed at a non-technical readership. However the following links at links at the bottom of this page may prove to be of interest prove to be of interest:

Glossary
1. Hacking: modifying a computer in way which was not originally intended in order to benefit the hacker’s goals.
2. Denial of Service attack: an attempt to prevent legitimate users of a computer system from having access to that system’s information or services.
3. Meta-data: at a basic level meta-data is data about data. It can be embedded within files or stored externally in a separate file and may contain information about the file’s author, format, creation date and so on.
4. Write blocker: a hardware device or software application which prevents any data from being modified or added to the storage medium being examined.
5. Bit copy: bit is a contraction of the term ‘binary digit’ and is the fundamental unit of computing. A bit copy refers to a sequential copy of every bit on a storage medium, which includes areas of the medium ‘invisible’ to the user.
6. RAM: Random Access Memory. RAM is a computer’s temporary workspace and is volatile, which means its contents are lost when the computer is powered off.
7. Key-logging: the recording of keyboard input giving the ability to read a user’s typed passwords, emails and other confidential information.

Jonathan Krause has over eleven years’ experience in IT security and seven years’ experience in commercial and law enforcement digital forensics, having worked for the Metropolitan Police at the Hi-Tech Crime Unit at New Scotland Yard as a computer forensic analyst and latterly as a independent consultant who has conducted a very wide range of investigations on behalf of commercial organisations involving fraud, deception, IP theft, murder, drug trafficking and child protection cases. Jonathan set up http://forensiccontrol.com/ in 2008.

Article Source: http://EzineArticles.com/expert/Jonathan_Krause/1131003

 

How To Wisely Buy A New Computer

We are now into 2012, and your old computer just quit. Do you fix it or buy a new computer? If the computer is 5 years old or older, then probably buying a new computer is the better strategy. Many computers manufactured 5 to 9 years ago have hardware components that fail mandating replacement of the computer. Please read on to understand how to buy the best computer for your needs.

The first decisions to make in buying a new computer are very basic. By answering these questions you determine your basic purchase strategy:

1. Please ask yourself “How much can I spend?” The computer prices range from $200 to $400, $450 to $800, and $900 and up.

2. Next determine the computer type (or style) that works best for you. The types of computers are desktop, laptop, and tablet. These types of computers differ in their size, portability, and functionality. Desktop computers are the least portable. They are good for using multiple displays and heavy workloads. Laptops vary in size and portability. The big ones have 17-inch display making them luggable for occasional trips. Big laptops have most of the capabilities of a desktop but the computing horsepower is lower than a desktop in order to conserve laptop battery power. Similarly, the display is smaller with lower resolution than displays used with desktop computers. Tablet computers are the most portable. They can do a lot, but with a much smaller display. The tablets are a powerful, portable information tool that is one step above a smartphone.

3. Finally, the timeless question is: Do I buy an Apple or another computer? The other computer main selections are Windows 7 operating system or Android operating system computers. There are also Linux computers. Linux is free General Public License software operating system. Linux computers are equivalent for everyday users to Windows and Apple computers. The single difference between Linux and Windows is that with a Linux computer you only pay for the computer hardware which is a huge savings over Apple and Windows computers.

The market for Apple computers is tightly controlled. This means that Apple computers work very well with few problems. They are seldom attacked by malicious software. Everything an enthusiastic Apple owner says about their Apple is true. They are also beautiful looking computers. The down side is that they are expensive. When an Apple does malfunction, you have a big problem. If the Apple computer is under warranty, then you schedule a visit to the Apple store and wait in line to get it fixed. Also, you pay a lot for the repair.

In contrast Windows 7 computers are like the Wild West. In the Wild West anything can and does happen. There are many competing hardware and software products for Windows 7 computers. Windows 7 computers are the most malware, spyware, and virus attacked computers. Because there are more Windows computers sold than any other computers, Windows computers are the biggest target to attack. Apple computers also get viruses, but much less often than Windows computers. Windows computers can be cheap computers but they are not cheaper than Linux computers.

4. The final question is: What computer manufacturer do you like? Each manufacturer has its approach to selling computers. My preference is manufacturers that do not add fancy frills beyond the basics that come with Windows or the computer operating system. Most of the frills try to sell you something, provide functions that a redundant with the operating system, they occupy screen space getting in the way of what you are doing, and they overload and slow down the computer. For example, HP computers are like Big MACs, they taste great but come with a lot of software fat. Lenovo computers are like a bank vault. They secure your data but are miserable to fix because of the security. It seems that all computers come with an annoying “dock” or application launcher. It takes up a lot of screen space and really adds little beyond what Windows itself provides. It is always cheaper to purchase a package than to build a custom computer. Purchasing custom computer parts is always more expensive than buying a packaged system from a manufacturer because the manufacturers purchase computer components in such high volume.

Once your basic strategy is determined, then it is time to find a computer. The approach here is to use the Internet to perform the initial shopping and then go to the store to make the final decision and purchase. Please go to the web site of a computer retailer near you such as Best Buy or Staples. Search their site based on the type (or style) of computer that works best for you. The site should produce a list of computers from which to choose. Sort them by “Best Selling” and check the “Customer Reviews”. Please determine how the price compares to your budget. Most retail store sites permit comparing the features of three computers side by side. Carefully select three computers for comparison.

This approach was used to compare from one retailer three desktop computers moderately priced. They ranged from $429.99 to $699.99. The $429.99 computer used a 3.3 GHz Intel i3 CPU chip, had 6 GB RAM, and a 1 TB disk drive. The 549.99 computer used an AMD 2.4 GHz CPU chip, had 8 GB RAM, and had a slower 5,400 rpm 1.5 TB drive. The $699.99 computer used an Intel 3.0GHz i5 CPU chip, had 6 GB RAM and a 7,200 rpm 1 TB drive. The differences between these systems are not likely to make the most expensive system perform that noticeably better to a user than the least expensive system. As long as the hardware features are generally in the same range the performance seems to be the same for each computer.

All systems used the latest DDR3 RAM. The computer with 8 GB of RAM may perform better than those computers with 6 GB of RAM. One thing is certain; all these computers would be decidedly faster than a Windows XP system with 2 GB of RAM. While special performance test programs can measure the performance difference between a 2.4 GHz AMD CPU chip computer and a 3.3 GHz Intel i5 CPU chip computer, people barely notice the difference. What people do notice is that AMD chip computers usually are cheaper by $100 or more than Intel CPU chip computers.

The Windows Performance Index is a measure of the combined performance of all the components of a Windows Vista or a Windows 7 computer. The Windows Performance Index is a single number that varies between 1 and 7.9. Low end systems have Windows Performance Index numbers in the 3.4 to 4.5 range. A computer with a 3.4 score perform the same as a computer with a 4.5 score to a human. To see a performance difference the Windows Performance Index would need to go from a 4.5 to a 7.5.

The Windows Performance Index is not mentioned in any advertising to my knowledge. It is found on Windows 7 computers by opening START, clicking the right mouse button on the COMPUTER menu selection and then selecting PROPERTIES from the drop down menu that appears. To see Windows Performance Index you would need to have a store sales person fire up the computer and help you view it.

Apple computers usually have hardware operates at slower speeds and has smaller capacities than Windows computers. The Apple computers perform as well as or better than their Windows competitors because they use a different and tightly controlled operating system. The software interaction with the hardware makes up for the slower Apple hardware.

The final comparison area is in the display. Monitors today use Light Emitting Diode (LED) backlighting. The LEDs use little power and should last seemingly forever. Monitor physical size contributes to visibility. A character on a 14-inch monitor is smaller than the same character on a 24-inch monitor. The bigger monitor images are more easily viewed. Monitors resolution is expressed in horizontal by vertical dots or pixels. Typically they are something like 1600 by 900 dots. Monitors with a larger number of dots of vertical resolution have a better display. Often monitors will be advertised as 1080p. The 1080p resolution is 1080 dots of vertical resolution with each line refreshed on each scan cycle. On a 1600 by 1200 monitor you can see a full 8.5 by 11 inch page when it is viewed at full size or 100% zoom. Monitors with 900 dots vertical resolution often cut off the bottom of the page when it is viewed at full size.

The final bit of wisdom to consider in purchasing a new computer is not to purchase the most expensive computer. Here is why. A client asked me to get him a computer. At the Dell web site I configured a computer with what seemed to be modest features. This computer cost $3,000. At Costco they offered a computer package that had somewhat lower performance features for under $1,000. If the client purchased a new $1,000 computer every year for three years, at the end of three years he would have better computer than if he purchased the $3,000 Dell computer. Only purchase the most expensive computer if you must absolutely have the features and performance it provides. Otherwise stay with more moderately priced computers and purchase them more often. Buying two $400 computers is better than going for a single $800 computer in the long run.

There is not the “best computer” to buy. But using the strategy presented here anyone can find a great computer for themselves.

Pete the Nerd
“Your Friend on a Technically Challenged Planet”

P D Moulton

Pete (the nerd) Moulton is “Your Friend on a Technically Challenged Planet”©. Helpful videos and other information from Pete are posted at http://www.dialanerd.com. If you have questions on technology or any published article, please e-mail Pete at dialanerd@verizon.net. Check out Pete’s most recent book “Pete The Nerds Do It Yourself Virus Removal” found at http://www.amazon.com/Nerds-Yourself-Virus-Removal-ebook/dp/B005K013W4/ref=sr_1_1?ie=UTF8&qid=1315457289&sr=8-1. Thank you for your time.

© Copyright – Pete Moulton. All Rights Reserved Worldwide.

Article Source: http://EzineArticles.com/expert/Pete_Moulton/1236813