Explanation

The basic function performed by a computer is execution of a program.

Taking data and instructions from a user, processing the data as per instructions, and displaying or storing the processed data, are the four major functions of a computer.

Explanation

 A computer system consists of a computer case, a power supply unit, a motherboard, a CPU, main memory, and a hard disk drive. Input devices include a keyboard, mouse, microphone, video camera, and image scanner.

CPU: Central Processing Unit

Explanation

Old computers those from the 1940s and 1950s, were based on vacuum tubes

Vacuum tubes were used in early computers to amplify electrical signals and act as switches.

They could control the flow of electricity in a circuit,

Making it possible to perform calculations and process information

Explanation

A database is information that is set up for easy access, management and updating.

A bit is a binary digit and it is the smallest unit of data on a computer

AGM 24-12-2022

Explanation

A communications device is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device.

Explanation

Keywords, also known as reserved words, have special meaning to the C++ compiler and are always written or typed in short(lower) cases.

AGM 17-12-2022

Explanation

Explanation

Virtual memory is a technique that uses a computer's hard drive to extend the amount of available RAM.

It's also known as virtual storage or a page file. 

Explanation

• The BIOS (Basic Input/Output System) is a firmware that is embedded on the motherboard of a computer.
• To run BIOS, a motherboard is the only necessary component.
• The BIOS is responsible for initializing and testing the hardware components, including the CPU, RAM, and hard disk, but it does not require these components to be present to run.

Explanation

Data transmission is the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices.

AGM 17-12-2022