Computer

Welcome to Computer keypoint page. Revision notes for your Computer O-Level exams like WAEC, JAMB, NECO, and NABTEB.

Computers and the Information Age

Definition of Information

Information Age

Characteristics of the ancient Age

Characteristics of the New / Information Age

Modern Means of Transmitting Information

Non-electronic Media

Methods of Recording Information

Processing of Data

Why computer is best used for Recording and Processing

Types and uses of Information

Definition of Data

Primary data

Secondary data

Ways of processing data

Advantages of data processing

Advantages / Usefulness of Computer studies in secondary schools

Definition of Information System

Characteristics of Good Information

Information Technology

Cybernetic Control

Application of information in information system

Social Effects of Computer

What is a Computer

The Basic Elements of Computer

The Basic Organization of Modern Computer

Basic Units of a Computer

The Input Unit

The output Unit

The Storage Unit

The Central Processing Unit (CPU)

Functions of the subunits of the CPU

Classification of Computers

Classification by Purpose

Classification by type

Classification by size

Computers Operating Modes

The Origin of Computer

Generations of Computer

Features of 2nd Generation Computers

Features of 3rd Generation Computers

Features of 4th Generation Computers

Features of 5th Generation Computers

The Computer Hardware

Keyboard

The Mouse

Scanners

Joystick

Lightpen

Voice Input (Voice Recognition terminal)