The System Development life Cycle (SDLC) is a conceptual model used in project management that describes the stages involved in an information system development project from an initial feasibility study… Read More »System Development life Cycle
A presentation package is a software package used to display information in the form of slide show. It has three major functions: an editor that allows text to be inserted… Read More »Presentation Package
TYPES OF TOOL BARS There are two types of tool bars in word processor a) Standard tool bar b) Formatting Toolbar Using the Microsoft Word steps a) Click the start… Read More »WORD PROCESSING ENVIRONMENT
Word processing is the art of using computer to type and edit text and graphics in letters, reports, term papers etc. To perform word processing you need a computer set… Read More »Word Processor
BOOTING Booting is a process that starts operating system when the user turns on the computer. Steps in booting a Computer: Put on the switch on the main socket to… Read More »BASIC COMPUTER OPERATIONS
ICT BASED GADGETS ARE THE FOLLOWING Mobile phones Computer Fax machines Automated Teller Machine Dispensing machines Point of Sales Machine-Automated Cash Register(ACR) Radio sets Television sets Mobile Phones: A… Read More »ICT BASED GADGETS
As mentioned in our previous lesson some important application area of ICT are: Video Conferencing Tele conferencing Tele Presence Tele Communicating and Network Tele Computing Messaging Information Search, retrieval… Read More »Important application area of ICT
Definition of Data Processing Data processing is the process of producing meaningful information by collecting all items of data together and performing operations on them to extract information. Data processing… Read More »DATA PROCESSING
Generations of Computers Generation of computers is the developmental stages that the computer has gone through. There are 5 generations of computers and their accompanying innovations. First Generation – Vacuum Tubes… Read More »Generations of Computers
JOHN VON NEUMANN’S MACHINE In 1945, mathematician John von Neumann undertook a study of computation that demonstrated that a computer could have a simple, fixed structure, yet be able to… Read More »ELECTRONIC COUNTING DEVICES AND MODERN COMPUTER
Electro-mechanical Counting Devices JOSEPH JACQUARD’S LOOM The Jacquard machine is a device fitted to a power loom that simplifies the process of manufacturing textiles with such complex patterns as brocade,… Read More »ELECTRO-MECHANICAL COUNTING DEVICES
Mechanical Counting and Calculating Devices As a result of the disadvantages of the early counting devices, more advanced mechanical counting and calculating devices were invented. Some of these devices are;… Read More »MECHANICAL COUNTING AND CALCULATING DEVICES
HISTORICAL DEVELOPMENT OF COMPUTERS: EARLY COUNTING DEVICES Definition and Examples of Early Counting Devices Early counting devices are devices that were used in the early days to perform arithmetic operations such as addition of numbers,… Read More »HISTORICAL DEVELOPMENT OF COMPUTERS
Oral method This is one of the oldest methods of transmitting information. It is the era of our great grandfathers when information was sent to people only through the use… Read More »ANCIENT METHODS OF TRANSMITTING INFORMATION
Definition of Information This is data already processed into a meaningful form for decision making. Information conveys meaning and is useful to one or more people. Definition of Transmission This… Read More »INFORMATION TRANSMISSION
Users are a key component in any information system. Therefore, protecting users is just as important as protecting hardware, software and data. The widespread use of computers have led to… Read More »HEALTH CONCERNS OF COMPUTER USE
Many of us go through our daily routine without noticing how many times we come into contact with computers. Computer technology has become such a part of our daily lives… Read More »ICT AND SOCIETY
Meaning of ICT ICT is an acronym which stands for Information and Communication Technology. It can be described as a diverse set of technological tools and resources used to communicate… Read More »ICT APPLICATION IN EVERYDAY LIFE
Definition of Computer Room Computer room is a room specially created for keeping computers and other peripheral devices. It is also called computer laboratory. In designing this room, the components… Read More »COMPUTER ROOM MANAGEMENT ETHICS
THE COMPUTER A computer is an electronic device that can accept data and process data in order to get the required information. The computer receives data through the input device,… Read More »PARTS OF COMPUTER KEYBOARD