Information can come from virtually anywhere — media, blogs, personal experiences, books, journal and magazine articles, expert opinions, encyclopedias, and web pages — and the type of information you need will change depending on the question you are trying to answer. Look at the following sources of information. Books Encyclopedias Magazines Databases Newspapers Library Catalog…
MEANING OF INFORMATION Information is stimuli that have meaning in some context for its receiver. When information is entered into and stored in a computer, it is generally referred to as data. After processing (such as formatting and printing), output data can again be perceived as information TYPES OF INFORMATION Oral information Written information…
Data is a raw fact that needs to be processed. it is called raw and unorganized facts. It is useless until it is processed and well organized. TYPES OF DATA 1 numerical data: These are mainly numbers such as 0,1,2,3,4,5,6,7,8,9 Alphabetical data: These are mainly letters A_Z and other words formed these letters e.g. father,…
Cold Boot: when the user switches on a computer after it has been power off completely, Warm Boot: when the user restarts the computer. When the booting process takes place, it copies kernel and important instructions of an operating system from hard disk to main memory (RAM). The kernel is the most important part of…
MEANING OF BOOTING Booting is the process of starting a computer. It can be initiated by hardware such as a button press, or by a software command Types of Booting 1) Warm Booting: when the system starts from the starting or from initial state means when we starts our system this is called as warm…
Definition of Computer Computer is an electronic device or machine which has the ability to accept data, process data and send out information as output. it has the ability to store and retrieve information. A computer is a programmable machine, it allows the user to store all sorts of information and then process that information…
Application Software These refer to the program used to solve a particular type of problem or variety of similar problems. Mostly, application programs are produced by an organisation for its specific tasks. Types of application software There are two major types of application software. These are: Users’ Application Program Application Package Users’ Application Programs: These…
ART OF INFORMATION PROCESSING – CPMPREHENSIVE Art of Information processing can be defined as a series of actions or operations that convert data into useful information. It is the act of gathering, manipulating, storing, retrieval and classifying recorded information. Art of information processing is the acquisition, recording, organisation, retrieval, display and dissemination of information. Data…
COMPUTER HARDWARE Computer hardware efers to the physical component of the computer system. It is every physical part of the computer system that can be seen and torch e.g. Keyboard, mouse, screw, motherboard etc. The components of the computer hardware are: SYSTEM UNIT AND PERIPHERAL DEVICES SYSTEM UNIT/DEVICE This is the part of a computer…
DATA AND INFORMATION WHAT ARE DATA AND INFORMATION? Data are raw facts. This means that when facts are collected about people, places, items, and events, animal and so on, data is obtained. Therefore data can be said to be the raw materials for producing information. Information is referred to as processed data, i.e. data that…
AN OUTPUT DEVICES PRINTER: This is an output device, which can be used to produce Hardcopy output. TYPES OF PRINTER The types of printer are listed below; Impact Printers Non-impact Printers IMPACT PRINTERS This is a type of printer, which usually make contact with paper while printing. It is usually noisy. Examples include:…
COMPUTER OUTPUT DEVICES AN OUTPUT DEVICES An output device is a device that provides the result of data processing to the user. All output devices are grouped into a single unit of the computer hardware called OUTPUT UNIT. Examples of Output Devices are; Monitor ( also called Visual Display Unit-VDU) Printer Graph plotter Speaker Multimedia…
KEYBOARD This is a board that contains many which users can connect to the system unit to be able to enter words, numbers and special characters. It is an input device. The most common type of keyword nowadays is the QWERTY keyboard (name obtained from the first six letters on it). FEATURES OR STRUCTURES…
AN INPUT DEVICE This is a device which is used to enter data into the computer system. All input devices are collectively called input unit (i.e. input unit of the computer hard ware is made of input devices). EXAMPLES OF INPUT DEVICES Mouse Barcode reader Keyboard Numeric key pad Light pen Digital camera Joy…
There are some computing devices that came into existence in the 20th century including the modern devices. Examples of these devices includes: ENIAC EDVAC UNIVAC PC ENIAC: means Electronic Numerical Integrator and Calculation. It was built by prof. John Mauchly and Prof J. Presper Eckert at the University of Pennsylvia between 1943 and 1945….
HISTORICAL DEVELOPMENT OF COMPUTING DEVICES II JACQUARD’S LOOM Is a mechanical loom, invented by Joseph Marie Jacquard in the year 1801. It was used for manufacturing textiles with complex pattern. [e.g. damask, brocade etc.]. It was usually operated with punch cards. DIFFERENCE ENGINE This device was invented by Charles Babbage (known as the Father of…
HISTORICAL DEVELOPMENT OF COMPUTING DEVICES The term computing means using logical and mathematical methods to calculate or process data. Some devices were used to do this even before the invention of the computer. Examples of such devices include; Abacus, Slide Rule, Napier’s Bones, Percaline, Stepped Reckoner. ABACUS: (made by sir Abacus) :It was used…
COMPUTER HARDWARE & SOFTWARE HARDWARE Computer hardware is generally used to describe all the electronic and mechanical elements of a computer system. It includes the physical equipment in a computer system e.g. cable, mother board, the processor, monitor, speaker etc. In otherwords, hardware is all the physical parts of a computer system that can be…
DEFINITION OF COMPUTER Computer can be defined as a programmable machine which can accept data through an input device, process the data accepted with pre-defined instruction and present the result through an output device in a desired form. A Computer is an electronic device that can accept data, store data and processed data to…
The Educator’s Guide To Using Video In Teaching And Learning During the recent COVID pandemic, the education industry went through a major paradigm shift. Classroom lectures were not feasible considering the risk factors during the COVID pandemic. It is why the education industry started using online channels to continue its operations. Also, online learning platforms…