Computer | MCQs

Explanation

Cache memory is also called CPU memory.

Cache memory is the fastest.

It is located close to the CPU.

It temporarily stores frequently used data for quick access by the processor.

Explanation

Press Ctrl + X for moving text in MS office.

Ctrl + R = use for Align selected text to the right.

Ctrl + E = use for Align selected text to the centre.

Ctrl + J = use for Justify paragraph alignment.

Ctrl + L = use for Align selected text to the left.

Ctrl + Q = use for Align selected paragraph to the left.

Ctrl + S = to save a document.

AGM 30.4.23

Explanation

Video processor consists of Video Graphic Array and memory which store and process images.

Video Graphics Array  first introduced with the IBM PS/2 line of computers in 1987

A VGA cable is a device used to transfer video signals.

VGA provides a maximum resolution of 640 x 480 with a refresh rate of 60 Hz

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Explanation

CAD, or CADD, is short for computer-aided design or computer-aided design and drafting.

CAD is a software used in the computer systems by: 

• Engineers
• Architects
• Drafters
• Artists

Explanation

An output device is any piece of computer hardware that converts information or data into a human-perceptible form or, historically,

It can be text, graphics, tactile, audio, or video.

Examples of Input Devices

1.       Keyboard.

2.       Mouse.

3.       Touchpad.

4.       Scanner.

5.       Digital Camera.

6.       Microphone.

7.       Joystick.

8.       Graphic Tablet.

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Output Device.

Printer

monitor

projector

Explanation

In computer architecture, 8-bit integers or other data units are those that are 8 bits 

Unit of: digital information, data size

Unit system: unit derived from bit

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Explanation

Explanation

1 Kilobyte (KB) = 1024 bytes

One Megabyte (MB) = 1024 Kilobytes (KB

One Gigabyte (GB) =  1024 Megabytes MB

One Terabyte (TB)= 1024 gigabytes (GB).

The size of information in the computer is measured in:

Kilobytes (KB)

Megabytes (MB)

Gigabytes (GB)

Terabytes (TB)

Explanation

Microprocessors are used in many other electronic devices, including:

• Computers,
• Digital systems,
• Calculators

Inventor of Microprocessors: Marcian E Hoff

Microprocessors in 4th generation computer.

AGM 09-2-2023

Explanation

The physical part of a computer is called hardware.

Hardware refers to all the tangible parts of a computer that contribute to its functionality.

Some examples of hardware include:

Motherboard, RAM, CPU, Mouse, Keyboard, CD, DVD, Hard disk, Monitor, and Case.

In contrast, software is the intangible part of a computer that helps it perform its functions.

Software is made up of programs, procedures, and routines that run the computer system.