COMPUTER | MCQs

Explanation

The brain of the computer is the CPU

CPU stands for the central processing unit

The first commercial CPU was invented by Italian Physicist Federico Faggin

The first CPU was the Intel 404 released by Intel in 1971.

**

The five basic parts of a computer are:

1. the motherboard
2. central processing unit (CPU)
3. input-output units
4. memory (RAM and ROM)
5.  storage (SSD or HDD)
   

***

AGM 07.5.23

Explanation

Charles Babbage is known as the Father of the Computer.

He was an inventor from the UK.

He was born in 1791.

He was died in 1871.

Explanation

CPU stands for Central Processing Unit

**

CPU is an example of hardware

A CPU contains  A control unit and an arithmetic logic unit

The CPU and memory are located on Motherboard.

The motherboard holds CPU, RAM and ROM chips, etc.

**

 Buses are connections or gateways between the CPU and other devices.

Explanation

1 byte equals 8 bits.

Additional Information

Explanation

LAN stands for local area network

It is a collection of devices connected together in one physical location

For example"

• school
• laboratory
• university campus 
• office building.

LAN covers can be small or large from home network and enterprise network

Additional Information

WAN stands for wide area network.

MAN stands for Metropolitan Area 

WANs and MANs connect many LANs together

WANs and MANs cover a large geographical area

Explanation

The shortcut key to print a document is Ctrl + P.

Additional Information:

Hyphen (-) is used to select a range for printing a document.

By default, the documents are printed in portrait-oriented mode.

Ctrl + A = select all

Ctrl + B = Bold

Ctrl + I = Italic

Ctrl + P = Print

Ctrl + Y = Redo

Ctrl + S = Save

Explanation

Ctrl + C in MS Word is used for the Copy command

Ctrl + V  used for = Past

Ctrl + C  used for = Copy

Ctrl + Z  used for = Undo

Ctrl + X  used for = Cut

Ctrl + Y   used for  = Redo

****

ND10-1-2023

Explanation

A bit is most basic unit of information in computing.

It is short for binary digit, which means that it can only have one of two values, 0 or 1.

Bits are usually assembled into a group of eight to form a byte.

1 Kilobyte (KB)  =  1024 Bytes.

1 Megabyte (MB) = 1024 Kilobytes.

1 Gigabyte  (GB) = 1024 Megabytes.

1 Terabyte (TB) = 1024 Gigabytes.

******

VU FIA CONSTABLE PAPER 2021

Explanation

The size of information in the computer is measured in Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).

1 Kilobyte (KB) = 1024 bytes

One Megabyte (MB) = 1024 Kilobytes (KB

One Gigabyte (GB) =  1024 Megabytes MB

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

*****

RY 15-01-2023

RK28-01-2023

Explanation