December 15, 2022

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 required in developing a working information system. 5.2 . Preamble Due to your expertise and […]

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 For example an ordinary typist has been replaced by one who can create documents using a computer. Many new jobs have been

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 the use of ICT The use of ICT offers a different set of opportunities and

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 shall look at how computers have been applied in the contemporary society to add value

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 link between two or more computers and in which a signal can be made to

TOPIC 1 : INTRODUCTION TO NETWORKING AND DATA COMMUNICATION – Click to view TOPIC 2 : APPLICATION AREAS OF INFORMATION AND COMMUNICATION TECHNOLOGY – Click to view TOPIC 3 : IMPACT OF INFORMATION AND COMMUNICATION TECHNOLOGY (ICT) ON SOCIETY – Click to view TOPIC 4 : CAREER OPPORTUNITIES IN INFORMATION AND COMMUNICATION TECHNOLOGY – Click

Introduction In the previous chapter, we studied how to develop a system using some system analysis and design methods without necessarily referring to any particular programming language. Therefore, we have been looking at what a system analyst ought to do rather than how a particular task should be done. In this chapter, we shall learn

Introduction The concept of a system emerged from early psychologists who believed that the mind was a whole unit, rather than a collection of psychological parts as the belief was by that time. However, it was Ludwig von Bertalanff, a German biologist, who gave the name “general systems theory” to the discipline that devoted itself

Introduction Human beings have evolved from the Stone Age to a highly sophisticated and advanced society by inventing things like the wheel, fire, transistors and today’s ultra modem devices like computers. The idea of computers started way back in the nineteenth century. The first generation computers called Electronic Numeric integrator and Calculator (ENIAC 1) were