Computer technology is there to stay in our lives. If one is a business guru there is no way a successful project goes by without inclusion of computers in any part of its scheme. Even home users find frequent use of computer in daily lives- in and outside their homes. Completing projects, doing assignments as students, meeting deadlines, all require the use of MS-Word or the internet or just the printer for hard copy. Even for activities like checking your bank account, drawing your salary from ATMs, online shopping, downloading music, information, videos etc. computers will always be a primary source.

Computer, like many other technological inventions, is not without its problems, especially after long-term or rigorous usage. New software may not have compatibility with hardware, parallel sharing equipments in an office may not align with each other, and downloading files from the net may corrupt your system and so on. Fortunately, in the busy world of Washington DC, you will find a solution for all computer problems.

Washington DC computer repair arena is known for giving quality services, something that the state of Washington DC is known for. You just have to Google the repair shop nearest to you to get online service like 'remote assistance'. You can even be guided verbally to correct any minor fault yourself. Other than that if you are a home-user, you will be given cost-effective repair at your door steps. Also being a business owner lets you call upon a team of expert to install a full-fledged network system with configuration and even tutorials to your workforce on how to manage it and overcome minor problems themselves. If you are an online marketing company you can ask for 'web development' services, business intelligence, workgroup solutions etc.

Washington DC computer repair services include: Annapolis repair, Calvert county repair, Frederick county repair, Middleburg repair, Prince Georges county repair, Warren county repair, Manassas repair, Columbia MD computer repair etc. The computer experts are just in or nearby these (and many other counties). Service charges vary per hour, especially for businesses. Charges start from a flat rate per hour and go on according to complexity of problem, time required, day of the week, and how urgently you want the work done.

Washington DC computer services arena includes:

? Installation, configuration and troubleshooting Windows OS

? Data backup and recovery esp. of important files and folder like: MS-word, spreadsheet, audio, video, and music files etc

? LAN & WAN (network) configuration and administration

? Removal of spyware -adware, virus, worms, and Trojans. Most of them that have been downloaded through the internet

? Firewall setup and emails security esp. for online businesses that want secure transaction for online purchases by clients

? Hardware repair: PC/MAC/Laptop, printer, CPU, CD/DVD ROM, motherboard, soundcard, speakers, printer repair

? Software installation, upgrade and troubleshooting

? Cisco router and networks installation

Competitive Washington DC computer repair services make sure that you get a service that is worth your money and you get a customized solution which is efficient and cost-effective.

No matter you are looking information on Washington DC computer repair or you want best Washington DC computer repair services in your locality, we provide all kinds of repair services to not only individuals but also small to large businesses.

Technology has always been a part of our lives, from building the first clubs and fires to the Space Age and the Information Age. We always learn enough about technology to use it as part of our daily living, but computer technology is one of the least understood parts of our existence. Therefore this series of articles will clarify some of the mysteries of computers.

What are the benefits of learning more about computers? If you are totally satisfied and have no frustrations with your computer, you are part of a very lucky minority! However, like every other type of technology, the more you understand it the better equipped you will be to handle the many issues that can arise. Knowledge is power, after all! You will be able to help yourself better with this information, and you will be able to help, and impress, your friends as well. So let's dig into the insides of your computer.

This introductory article will talk about the parts of the computer, and the difference between the various parts such as hardware and software, programs and data and memory and storage. Future articles in the series will go more in-depth on these as well as many other topics. Questions and discussions from readers will also be addressed in future articles.

What do you see when you look at a computer system? The most basic modern setup will include four components; the computer itself, a mouse, a keyboard and a monitor. There may be many other additional components such as printers, modems, speakers, microphones, etc. Let's start with our basic four component system.

It is helpful to consider this model of the computer: The computer itself computes information (processing); we have to provide information into the computer (input) in order to receive new information from the computer (output). Every piece of computer equipment provides one or more of these functions, input, processing and output.

A keyboard and a mouse provide input into the computer. After processing the information the results are output to a monitor or a printer. Some devices can provide both input and output. For instance, we can receive an email from a friend (input from the internet through the modem) and reply to the email (output to the internet through the modem). Or you can create a spreadsheet and save it to your hard drive (input data to the hard drive) and later open the spread sheet from the hard drive (output data from the hard drive). The modem and the hard drive are capable of both input and output, so they are known as input-output (I/O) devices.

Hardware is any device you can physically touch. Every device talked about so far can be physically touched. Software cannot be touched. It is the electronic information created by the flow or absence of an electrical signal. You cannot touch the programs or data used on your computer. You can touch and hold a hard drive, or a CD or a DVD, so these are all examples of hardware. But you cannot touch the flow or absence of an electrical signal, the zeros and ones that make up the binary world of computers. If you can touch it, it is hardware; if you cannot touch it, it is software.

Programs and data are both considered to be software, because they are composed of the flow or absence of electrical signals, the binary zeros and ones that computers process. The words programs and applications are pretty much the same; they are instructions that tell a computer what to do. The data you create might be a document, spreadsheet, graphic, or email.

All software, programs and data, are kept on the computer in one form or another. When you are working on a word processing document, for example, you have loaded the program (word processor) and data (document) into the RAM (Random Access Memory) of the computer. This is where it is kept while the computer is actively processing the information.

But what happens when you turn off the electricity to the computer? There is only an absence of electrical signal, which would be all zeros in the binary world of the computer. So we must have a way of storing the information so we can use it again later. This is why we use the hard drive. But the hard drive does not have electrical current flowing when the power is off, so it uses an equivalent technique. Like the cassette tapes of yesteryear, the hard drive has a magnetic surface that stores information.

Think of a compass, with North and South poles. North and South can be used to represent the zeros and ones the computer processes. Now all the directions between North and South represent the full range of audio signals in a music cassette, but if we saturate those magnetic particles so they are either North or South, that will provide a digital equivalent to the flow or absence of an electrical signal, the zeros and ones of the computer's world.

Another way to remember the difference between the electronic memory of the RAM and the magnetic storage of the hard drive is to think of the RAM as your desktop and the hard drive is a large filing cabinet. We pull information out of storage in the hard drive/filing cabinet and place it on the desktop/RAM. The more RAM you have, the bigger your desktop and the more items (programs and data) you can have open. The bigger your hard drive, the more information you can store in your filing cabinet. Also, you can have a large file cabinet/hard drive and a small desktop/RAM, which would mean you could store a lot of information but not enough room to open too many at once, or a small file cabinet/hard drive and a large desktop/RAM, which would allow you to have a lot of information open at the same time but not a lot of room to store it. The best scenario, of course, would be to have ample memory and storage.

This has been a lot of information at once, so let's bring it to a close for now. Here are some questions for you to consider. What are some different types of input devices? What are some different types of output devices? Would an audio CD be considered hardware or software? Would the music on the CD be considered hardware or software? Which would you rather have, more memory or more storage?

Now that these questions have been asked, let's turn the tables and see what questions you want to ask. Send a letter or email them to lediskdoctor@yahoo.com.

D. Mark Scott has been working with computers since well before Windows and the World Wide Web. He now shares his perspective regarding computers with an absorbing introductory review of the computer world. Easy to read and follow, Mr. Scott's writings are sure to help people gain a better grasp of the power available in today's personal computers.

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