COMPUTER | MCQs

Explanation

Peripheral device (input/output)

Input: Mouse, keyboard, joystick, image scanner, webcam, graphics tablet, microphone

Both: Floppy disk drives, hard disk drive, optical disc drive, teleprinter

Explanation

An internal hard drive is the primary storage device located inside a computer system.

It usually contains pre-installed software applications, the operating system and other files.

Explanation

The hard disk is a secondary storage device, which is designed to store data permanently.

Explanation

Chip multiprocessors also known as: multi-core computing

Explanation

The Atanasoff–Berry computer was the first automatic electronic digital computer.

Limited by the technology of the day, and execution, the device has remained somewhat obscure.

Explanation

Three types of bus are used.

Address bus: carries memory addresses from the processor to other components such as primary storage and input/output devices. 

Data bus : carries the data between the processor and other components.

Control bus: carries control signals from the processor to other components.

Explanation

COBOL is a compiled English-like computer programming language designed for business use.

Explanation

computer memory capacity is expressed in multiples of a power of two.

it is measured in megabytes (MB) and gigabytes (GB).

A medium-sized novel contains about 1 MB of information.

1 MB is 1,024 kilobytes, or 1,048,576 (1024x1024) bytes, not one million bytes.

Similarly, one 1 GB is 1,024 MB, or 1,073,741,824 (1024x1024x1024) bytes.

Explanation

The abbreviation “MB” stands for “megabyte,” a unit of computer storage.

Unit                 Description

Megabyte 1024 kilobytes

Gigabyte         1024 megabytes

Terabyte         1024 gigabytes

Petabyte         1024 terabytes

Explanation

The system unit of a personal computer typically contains all of the following except Modem.

The main part of a personal computer.

1. the chassis
2. microprocessor
3. main memory
4. bus
5. and ports