Lesson Notes, Audio Lessons, Exam Questions
Lesson Notes, Audio Lessons, Exam Questions
This section covers Computer Studies, ICT, and IT lessons for all class levels. Whether you are starting with the basics of computer literacy or advancing into programming and networking, you’ll find organized content that aligns with school curricula.
Students and teachers can explore topics such as computer hardware, software, internet usage, word processing, spreadsheets, coding basics, and cybersecurity.
These resources are ideal for boosting classroom learning, preparing for examinations, and improving real-world tech skills necessary for academic and professional success.
Learn Computer Studies, ICT, and IT for all classes with carefully structured topics. Access lessons designed to build digital skills from basics to advanced levels.
A computer is an electronic machine that works under the instructions given by us. In order to perform any work, a computer follows three steps: Input – Process – Output. It can accept data (Input), manipulate the data according to…
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…
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 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…
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…
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…
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,…
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…
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…
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…
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…
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…
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;…
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…
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…
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…
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…
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…
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 other words, hardware…
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…