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NETWORKING AND DATA COMMUNICATION NETWORKING AND DATA COMMUNICATION Definition of terms used in Networking Network A Network can be defined as a collection of independent entities that are arranged in such a manner as to…

CAREER OPPORTUNITIES IN ICT (INFORAMTION AND COMMUNICATION TECHNOLOGY) Introduction. CAREER OPPORTUNITIES IN ICT The era of computer and automated information and communication technology has brought both blessing and disappointments in…

DATA TRANSMISSION DATA TRANSMISSION. This is the movement of data between the place at which the data is prepared and the computer center, and between the computer center and the place at which the results are required. This means that,…

ELEMENTARY PROGRAMMING PRINCIPLES Definition of terms Computer Program: Elementary programming principles. A computer program is a set of coded instructions given to the computer, and represents a logical solution to a problem.  It…

DATA REPRESENTATION IN A COMPUTER. Data representation- Computers handle data by electrical components, e.g. Transistors, Semiconductors, Integrated Circuits or wires, which exist in two conditions (states), ON & OFF or “1” &…

SYSTEM DEVELOPMENT Introduction System development involves identifying business requirements and developing information systems that will effectively help to support the day-to-day operations & decision-making processes in an…

DATA PROCESSING (part2)  Part 2 COMPUTER FILES DATA PROCESSING (part2)-A File is a collection of related records (i.e. several records put together) that give a complete set of information about a certain item or a particular business…

DATA PROCESSING. DATA PROCESISSING-Data processing deals with how data is organized & processed in the computer. DATA: Data is a collection of facts & figures, which can be processed to produce information. Data are…

DATABASE  INTRODUCTION TO DATABASE What is a Database? It is a collection of information related to a particular subject or purpose. A collection of related data or information grouped together under one logical structure. A…

DESKTOP PUBLISHING (DTP). DESKTOP PUBLISHING  (DTP) Introduction  Publishing is the process of producing publications such as newspapers, cards, pamphlets, pictures, calendars, books, etc that has special text and graphical layouts…