OVERVIEW OF THE COMPUTER SYSTEM
CONTENT
- Definitions of a Computer
- The Three Basic Operations of the Computer
- Two Main Constituents of a Computer
Definitions of a Computer
Definition 1
A computer is an electronic device which, under the control of a stored program can accept, process, store, retrieve data, and output the result as information in a specified form.
Definition 2
A computer is an advanced electronic device that takes raw data as input from the user, processes these data under the control of a set of instructions (called program), gives the result (output) and saves output for future use.
Definition 3
A computer can be defined as a programmable electronic device designed for performing prescribed operations on data at high speed. It can also be linked to other devices for inputting, storing, retrieving, and output of information.
The Three Basic Operations of the Computer
The three basic operations of the computer are:
Input (Data)
Input is the raw data entered into a computer from the input devices.
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