Computer is a programmable machine that stores and manipulate data or information.
From user point of view the process is sepearated into three steps.
2.) Data processing.
Input means commands that are sent to the computer through keyboard or mouse.
Data processing means that computer does some activities to perform required result.
Output is a way of data representation.
Main component of the computer to which all other devices are connected.
CPU - Central Processor Unit
Heart of the computer. Provides majority of computer operations.
Storage for temporary data processed by CPU.
Permanent storage for data.
Graphic unit that shows data in format readable for human users on a computer monitor.
Device for connecting computer into network (eg. Internet).
From the left side/top:
PS/2 (mouse, keyboard), serial and parallel port, s-video, RJ45, USB, audio
Description of the computer.
programm, processing, data, input, output, ...