Understanding Computers

Computers are tools used to process the data according to commands that have been formulated. Computer word originally used to describe people whose jobs do arithmetic calculations, with or without assistive devices, but the meaning of this word is then transferred to the machine itself. Origins, processing information almost exclusively related to arithmetical problems, but modern computers are used for many tasks unrelated to mathematics.
Broadly, the computer can be defined as an electronic device that consists of several components, which can work together between the components with one another to produce an information based on existing programs and data.

The computer components are included: Screen Monitors, CPU, Keyboard, Mouse and Printer (as a complement). Without a computer printer can still perform his duties as a data processor, but the extent visible on the screen monitor is not yet in print form (paper).
In such a definition have a tool like a slide rule, mechanical calculator types ranging from abacus and so on, until all contemporary electronic computers. The term better suited to a broad sense such as "computer"is "that process information" or "information processing system".
Today, computers are becoming more sophisticated. However, before the computer is not as small, sophisticated, cool and light as now. In the history of computers, there are 5 generations of computer history