Purpose of ICT

Information and Communication Technology (ICT) describes the use of computer systems and communication technologies to store, process, and transmit information.

Definition of a Computer

A computer is an electronic device that processes data according to a set of instructions (programs). It is capable of storing, retrieving, and processing information efficiently.

Responds to instructions accurately
Executes programs systematically
Stores large amounts of data

Types of Computers

Mainframe Computers

High-performance computers used in large organisations such as banks, government departments, healthcare, aviation, and retail industries.

Minicomputers

Medium-sized computers used by small and medium businesses for general operations.

Personal Computers (PCs)

Computers designed for individual use such as typing, browsing, and office work.

Laptops

Portable computers powered by battery or electricity for use in different environments.

Thin Clients

Computers that rely on a central server for processing and storage.

Mobile Devices

117925 Concepts of ICT - Video Lessons

Computer Hardware

Hardware refers to all physical components of a computer system.

Main Components

Motherboard
CPU (Central Processing Unit)
RAM
ROM
Graphics Card
Sound Card
Modem

Input Devices

Keyboard
Mouse
Scanner
Microphone
Digital Camera

Output Devices

Monitor
Printer
Speakers

Ports

USB Port
VGA Port
Serial Port
Parallel Port
PS/2 Port
Audio Jack

Software

Software refers to the programs and instructions that control and operate a computer system.

Types of Software

Operating System Software: Controls hardware and manages system resources.
Application Software: Used to perform tasks such as word processing, spreadsheets, and presentations.

Computer Networks

A computer network is a collection of interconnected computers that share data and resources.

Types of Networks

LAN (Local Area Network)
Internet
Data Communication
Telecommunication

Benefits of Networks

Efficient data sharing
Hardware sharing
Global communication
Online collaboration

Contact Us

For any enquiries regarding the online course, attendance, or academic support, please contact the facilitator:

Facilitator: Saul Dube
Email: facilitator@nwavuxeni.co.za
Phone: 064 511 7048

You may also contact or visit your nearest academy branch for further assistance regarding registration, training, and student support.

We encourage all students to reach out for help related to course content, registration, or attendance matters. Responses will be provided during working hours.