Day: June 22, 2021

COMPUTER SOFTWARE Software is simply set of instructions that cause a computer to perform one or more tasks. The set of instructions is often called a program or, if the set is particularly large and complex, a system. Computers cannot Read More …

Computer output devices An output device displays information on a screen, creates printed copies or generates sound. A monitor, printer, and speakers are examples of output devices. i. Monitors and Displays Shows the processed information on a screen. A monitor Read More …

BASIC HARDWARE UNITS OF A COMPUTER Introduction i. Hardware units (Devices) of a computer can be categorized into five units; Input unit ii. Output iii. Central processing unit (CPU) or processor iv. Main Memory v. Secondary storage/Backing Storage Input Devices Read More …

HISTORICAL DEVELOPMENT OF COMPUTING Generations of computers 1. First Generation: 1946-1956 The first generation of computers relied on vacuum tubes to store and process information. The tubes consumed a lot of power, were short-lived and generated a lot of heat. Read More …

USES OF THE COMPUTER (ROLE OF COMPUTER IN OUR SOCIETY) a. Education and research; Computers are widely used in education as teaching aids and in research institutions. In aviation, computers are used to train pilots. Scientists use computers to analyze Read More …

COMPUTER SYSTEMS Computer – Is an electronic device that accepts and processes data into information and under the control of instructions stored in its own memory and output or store the results for future use. ii) Data – Data are Read More …

INFORMATION SYSTEMS PERSONNEL AND HIERARCHY Information and communication Technology (ICT) have created new job titles such as computer operators, computer operators, computer technicians, system analysts, computer programmers, information system manager, database administrator, web-administrator, and network-administrator. ICT PERSONNEL Information System Manager Read More …