Computer | MCQs

Explanation

Singular noun: Mouse

Plural noun: Mice 

The plural for a computer mouse is either "mice" or "mouses" according to most dictionaries, with "mice" being more common.

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.

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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)
   

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AGM 07.5.23

Explanation

Solution

• 13 ÷ 2 = 6, remainder 1

• 6 ÷ 2 = 3, remainder 0

• 3 ÷ 2 = 1, remainder 1

• 1 ÷ 2 = 0, remainder 1

Reading the remainders from bottom to top: 1101

So, 13 in binary = 1101.

Explanation

The ENIAC (Electronic Numerical Integrator and Computer), developed from 1943 to 1946.

It was the first general-purpose electronic digital computer.

It was designed for calculating artillery firing tables and utilized vacuum tubes.

Explanation

English mathematician and inventor Charles Babbage is often called the father of computers.

Because he introduced the basic ideas that nearly all modern computers rely on.

Babbage started designing an analytical engine in 1830, which could be programmed to perform calculations using punched cards. 

Explanation

Hard Disk is where data is permanently stored.

Unlike RAM and cache memory, which are volatile.

Hard disks retain data even when the computer is turned off.

Explanation

Silicon is the primary material used in making computer chips.

Due to its excellent semiconductor properties.

They are essential for controlling electrical currents.

Explanation

Image file formats are standardized means of organizing and storing digital images.

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Explanation

Firewalls provide protection against outside cyber attackers by shielding your computer or network from malicious or unnecessary network traffic.

Firewalls can also prevent malicious software from accessing a computer or network via the internet.

Explanation

 A computer system consists of a:

computer case,

a power supply unit,

a motherboard,

a central processing unit ,

main memory,

and a hard disk drive.

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while:

Input devices include :

a keyboard,

mouse,

microphone,

video camera,

and image scanner.

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Output devices include:

a monitor,

speakers,

and a printer.

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RY 16-01-2023

ND11-4-2023