COMPUTER STORAGE DEVICES
Computer Memory This is the part of the computer where data, programs and information are stored for use of the computer. It comes in form of a chip. The basic unit for computer memory is byte. Other units are KB,…
Acadlly Learning
Lesson Notes, Audio Lessons, Exam Questions
Acadlly Learning
Lesson Notes, Audio Lessons, Exam Questions
Category Data Processing/Information Processing For All Classes
See our comprehensive Data Processing and Information Processing resources for all classes. Our lessons are designed to help students understand fundamental ICT concepts, data management techniques, and real-world applications.
This category covers topics essential for WAEC and NECO examinations, ensuring students gain the skills needed for academic and professional success.
Learn the principles of information systems, data organization, computer operations, and the role of technology in everyday life.
Whether you are preparing for exams or simply expanding your knowledge, this subject area will build your competence in today’s digital world.
Study Data Processing and Information Processing across all classes. Learn core concepts, applications, and practical examples to master ICT skills for WAEC and NECO exams.
COMPONENTS OF COMPUTER (OUTPUT DEVICES)
OUTPUT DEVICES These are hardware components used to obtain results from computer after processing. They convert data from machine-readable format into human readable format. Examples of output devices are monitor, printer, speaker, projector, plotter, etc. MONITOR This is an output…
COMPONENTS OF COMPUTER (INPUT DEVICES)
INPUT DEVICES These are hardware components used in entering data into the computer for processing. They convert data from human-readable form into machine readable format. They take information from the user of the computer, convert it into electronic signals and…
APPLICATION OF ICT IN THE SOCIETY
Application Areas of ICT ICT in Everyday Life. ICT is an acronym which stands for Information and Communication Technology. It is defined as set of technological tools and resources used to communicate, create, disseminate, store and manage information. The technologies…
NUMBER BASES
CONVERSION OF OTHER BASED TO DECIMAL SYSTEM To convert numbers in other bases to denary system, expand the given number in powers of its base and evaluate. Examples 1) Convert the following numbers to base ten (i) 10012 (ii) 255eight…
CLASSIFICATION OF COMPUTERS
Computers can be classified based on the following criteria Development of technology (by generation) Principle of operation (by type) Storage capacity or by configuration (by size) Degree of versatility (by purpose) Classification by types Computers can be classified into three…
DIGITIZATION OF DATA
DIGITIZATION OF DATA What is Digitization of data? Digitization is the process of converting analog information into a digital format. For example, scanning of analog source like printed photos or taped text, images or videos into computers for editing. Digitizing…
DATA AND INFORMATION
DATA AND INFORMATION What is data? Data refers to raw facts yet to be processed. It is a fact, number or text that can be processed by a computer. Data has no meaning to the user unless processed to get…
GENERATIONS OF COMPUTER
A generation is often referred to the state of improvement in the development of a product. Generation of computer is the advancement of computer technology from time to time. In every generation, the circuitry has become smaller and more advanced…
COMPUTER ROOM AND MANAGEMENT ETHICS
What is computer room? A computer room is a place where computers are kept for use. Computers need a room well ventilated and conductive for optimum performance. Types of Computer Room Computer room must be designed intelligently and serve the…
Concept of Data Processing
Data processing is the process of converting raw fact (data) to information (processed data). It embraces the techniques of sorting, relating, interpreting and computing items of data in order to provide meaningful useful information. Steps in data processing i) Preparation…
Number Bases
The Number Bases Number Bases – Binary Number System, Octal Number System, Denary Number System (Decimal) and Hexadecimal Number system.