CA/U4 Topic 2 Types of Communication Media
Communication media refers to the means of delivering and receiving data or information. In telecommunication, these means are transmission and storage tools or channels for data storage and transmission. Different […]
CA/U4 Topic 3 Concept of Computer Networks
A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range […]
CA/U4 Topic 4 Internet, Intranet, Extranet
Information technology has been rapidly advancing over the last decade, with information being available as an on demand commodity at levels never before imagined. Today, a teenager in rural India […]
CA/U4 Topic 6 Networking Devices
Network Devices Repeater A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so […]
CA/U4 Topic 7 OSI model
The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to its underlying internal […]
CA/U4 Topic 8 Information Technology and Society
The data industry contains all computer, communications, and also electronics-related organizations, such as hardware, applications, and solutions. Completing tasks using data technology leads to rapid processing and data freedom, in […]
CA/U2 Topic 1 Types of Software
Software is a set of programs, which is designed to perform a well-defined function. A program is a sequence of instructions written to solve a particular problem. Software is the […]
CA/U2 Topic 2 Introduction to Operating System
An operating system acts as an intermediary between the user of a computer and computer hardware. The purpose of an operating system is to provide an environment in which a […]
CA/U2 Topic 3 Functions of Operating System
An operating system includes all the programs of a computer system that control and monitor the operations of the system. Operating systems typically consist of a kernel that manages the […]
CA/U2 Topic 4 Types of Operating System
An Operating System performs all the basic tasks like managing file,process, and memory. Thus operating system acts as manager of all the resources, i.e. resource manager. Thus operating system becomes […]
CA/U2 Topic 5 Booting Procedure, Start-up Sequence
Booting Procedure Booting (also known as booting up) is the initial set of operations that a computer system performs when electrical power is switched on. The process begins when a […]
CA/U2 Topic 6 Introduction to graphical user interface (GUI)
GUI is an interface that uses icons or other visual indicators to interact with electronic devices, rather than only text via a command line. For example, all versions of Microsoft […]
CA/U2 Topic 7 Dictionary, File, Volume, Label, Drive Name
DICTIONARY A dictionary is an alphabetical listing of words and their meanings. Dictionaries help users look up definitions to get a better understanding of the word and an overall better […]
CA/U2 Topic 8 Translators and Languages: Compiler, Interpreter and Assembler
COMPILER A compiler is a computer program that translates computer code written in one programming language (the source language) into another programming language (the target language). The name compiler is […]
CA/U2 Topic 9 Types of Computer languages
Just as humans use language to communicate, and different regions have different languages, computers also have their own languages that are specific to them. Different kinds of languages have been […]
CA/U1 Topic 1 Characteristics of Computer
Computer is an electronic device that is designed to work with Information. The term computer is derived from the Latin term ‘computare’, this means to calculate or programmable machine. Computer […]
