Author: MJ

4.1                   DEFINITION OF THE TERM: ‘OPERATING SYSTEM’  Operating System as defined earlier, is a set of programs available within  the  system  software  that  standardizes  the  way  a  computer’s resources are made available to the user and to applications software.   Read More …

3.1       BEHAVIOUR IN THE COMPUTER LAB  Computer lab forms a very important section of an organization or school and therefore strict rules in terms of behaviour of personnel/students working/studying in the lab needs to be put in place Read More …

DIAGRAMMATIC REPRESENTATION OF DIVISIONS OF A COMPUTER The following diagram shows the basic physical computer breakdown that will serve as a reference throughout the chapter. KEY: C.P.U      –      Central Processing Unit A.L.U      –      Arithmetic Logic Unit DOS –              Read More …

Before we attempt to define a Computer, there are a number of associated terminologies that the learner needs to know beforehand. These are: Data, Information, and Programs. Data is the name given to facts. For example, in a school, the Read More …

Introduction In this chapter, we shall undertake a case study entitled A school canteen management system. The objective of this case study is to help the students to apply the programming techniques learnt in Form 3 Preamble A school canteen Read More …

Introduction In this chapter, we undertake a case study entitled Bukuma information system. The objective of this case study is to help the student apply the system development techniques learnt in Form 3. We shall address each step that is Read More …

Introduction The era of computers and automated information and communication technology has brought both blessings and disappointments in the workplace. Some people have acquired very well paying jobs while others have lost theirs. For example an ordinary typist has been Read More …

Introduction This era of information and communication technology (ICT) continues to influence our lifestyle both positively and negatively. This chapter seeks to explain some of the issues that result from the use of ICT in the society. Issues resulting from Read More …

Introduction Computers play an important role in every aspect of our society today. Hardly does a day pass without one coming across a computer system that is used in offering services that were initially done manually. In this chapter, we Read More …

Definition of terms used in networking. A computer network can be defined as a collection of computers linked together using transmission media for the purpose of communication and resource sharing. The term transmission media refers to any physical or non-physical Read More …