The Importance of the Computer as a Tool for Data Processing The computer is a very unique electronic device and has certain features and characteristics that distinguish it from other… Read More »IMPORTANCE OF THE COMPUTER AS A TOOL FOR DATA PROCESSING
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
Electro-mechanical Counting Devices These are counting devices that could be operated both electrically and mechanically. Electro-mechanical devices include the following: Speeding Clock Blaise Pascal machine Gottfried Leibniz Machine SPEEDING… Read More »HISTORICAL DEVELOPMENT OF COMPUTERS
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
MODERN METHODS OF TRANSMITTING INFORMATION With modern inventions in communication, many ancient methods have been replaced with more efficient modern ways of transmitting information. These include the following: Printing Telephone… Read More »MODERN METHODS OF TRANSMITTING INFORMATION
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
Rules and Regulations of the Computer Laboratory The following are the rules and regulations of the computer laboratory: Computer room should be kept tidy always by regular cleaning Do not… Read More »COMPUTER LABORATORY RULES AND REGULATIONS
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
THE KEYBOARD AND TYPES OF KEYBOARD CONTROL KEYS:they are used in line with other keys to instruct the computer to perform specific tasks. They are ctrl, del Esc and Alt.… Read More »THE KEYBOARD AND TYPES OF KEYBOARD
Definition of the Keyboard The keyboard is an input device that is used to send data into the computer. Its cable must be connected to a port of the system… Read More »THE KEYBOARD AND TYPES OF KEYBOARD
TYPES OF MICRO COMPUTER Micro computer is the smallest and the cheapest class of computers built for special purposes, e.g. for use in clocks, cameras etc. Micro computer contains between… Read More »FEATURES OF A COMPUTER