Computer System

Computer Science SSS1 First Term

Computer System

Week 1

Performance Objective

The student should be able to:               

1. Define computer
2. Classes of Computer
3. Chrematistics of a computer

Content

A computer can be defined as an electronic machine (device) which under the control of a stored program accepts data, stores the data processes the data and brings out the results as information.

Computer as an IPOS System

Computer Performs Four (4) Key Operations on Data

a. Input b. Processing c. Output d. Storage

Input: Data are entered into the computer through the input unit. Data are raw facts that are to be processed into meaningful form.

Processing: The computer performs certain operations on data entered into it; the Central Processing Unit…