Monday, September 22, 2008

Training Computer:Introduction to computers


Introduction to Computers
Are you new to computers? You ask yourself what they do and why you want to use one? You're Welcome to the right place. This article provides an overview of computers: they are, the different types, and what you can do with them.

What are the computers?
The computers are machines that perform or calculations based on a set of instructions or programs. The first fully electronic computers, introduced in the 1940s, were huge machines that required teams of people to work. Compared to these early machines, computers today are amazing. Not only are thousands of times faster, they can place on your desk, your turn, or even in your pocket.

Computers work through an interaction of hardware and software. Hardware refers to parts of a computer you can see and touch, including where and everything inside. The most important piece of equipment is a small rectangular chip inside your computer called the central processing unit (CPU), or microprocessor. It is the "brain" of your computer to the party that translates instructions and performs the calculations. Hardware items such as your monitor, keyboard, mouse, printer, and other elements are often called hardware devices, or devices.

Software refers to instructions or programs, say that the hardware what to do. A word processor that you can use to write letters on your computer is a type of software. The operating system (OS) is software that manages your computer and peripherals connected to it. Two well-known operating systems Windows and Macintosh operating system. Your computer using the Windows operating system.