Tag: evs

Questions Related to evs

Which printer prints images by spraying the ink on the paper?

evs computer computer - an introduction computer and its functions different parts used in computers

  1. Laser printer

  2. Ink-jet printer

  3. Dot matrix printer

  4. Line printer

Show answer
Correct Option: B
Explanation:
Inkjet printers spray liquid ink onto paper in tiny, precise drops.

In the modern-day computers, when operational, the electrical impulses travel.

evs computer computer - an introduction computer and its functions different parts used in computers

  1. At half the speed of light

  2. At seven times the speed of sound

  3. At the speed of sound

  4. Nearly at the speed of light

Show answer
Correct Option: D
Explanation:

Electromagnetic waves propagate in vacuum at a maximum speed of  29,97,92,458 m/s.

Which of the following is a property of a computer?

evs computer computer - an introduction computer and its functions different parts used in computers

  1. Storage capacity

  2. Accuracy

  3. Speed

  4. All of the above

Show answer
Correct Option: D
Explanation:
The property of a computer are speed, accuracy, diligence, versatility and storage capacity.

Which of the following is a correct categorization of a computer?

evs computer computer - an introduction computer and its functions different parts used in computers

  1. Memory, A.L.U., Control device

  2. Keyboard, Mouse, Monitor

  3. Input device, Control device, output unit

  4. None of the above

Show answer
Correct Option: D
Explanation:
Computers are categorized as:
  1. Personal computers
  2. Mobile computers
  3. Mainframes
  4. Servers
  5. Supercomputers.
Hardware devices can be classified into four distinct categories:
  1. Input devices: For raw data input.
  2. Processing devices: To process raw data instructions into information.
  3. Output devices: To disseminate data and information.
  4. Storage devices: For data and information retention.

Which option correctly explains 'Automation', a property of a computer?

evs computer computer - an introduction computer and its functions different parts used in computers

  1. Computer can do complicated calculations in a very short time

  2. Computer has extraordinary capacity to store data

  3. Computer is an automatic machine which when once started, works accordingly to directions as per the given programme

  4. None of the above

Show answer
Correct Option: C
Explanation:
As a computer is an automatic machine which when once started, works accordingly to directions as per the given programmer.

The physical part of a computer is known as:

evs computer computer - an introduction computer and its functions different parts used in computers

  1. Software

  2. Hardware

  3. Operating system

  4. System unit

Show answer
Correct Option: B
Explanation:
Computer hardware is the physical parts or components of a computer, such as the central processing unit, monitor, keyboard, computer data storage, graphic card, sound card and motherboard.

Computer is an electronic device which can do restless work for a long time without any exhaustion.
This property of computer is termed as:

evs computer computer - an introduction computer and its functions different parts used in computers

  1. Wide utility

  2. Accuracy

  3. Diligence

  4. Speed

Show answer
Correct Option: C
Explanation:
Diligence: - A computer is free from tiredness, lack of concentration, fatigue, etc. It can work for hours without creating any error. If millions of calculations are to be performed, a computer will perform every calculation with the same accuracy. Due to this capability it overpowers human being in routine type of work. 

Which of the following is not a part of Central processing unit?

evs computer computer - an introduction computer and its functions different parts used in computers

  1. Memory

  2. A.l.U.

  3. Mouse

  4. Control device

Show answer
Correct Option: C
Explanation:
The two typical components of a CPU include Arithmetic Logic Unit (ALU), control device and memory.

Which monitor is preferred for good picture quality and low electrical consumption? 

evs computer computer - an introduction computer and its functions different parts used in computers

  1. CRT Monitor

  2. LCD Monitor

  3. LED Monitor

  4. None of the above

Show answer
Correct Option: C
Explanation:
LED monitor is preferred for good picture quality and low electrical consumption.

A byte is a group of

evs computer computer - an introduction computer and its functions different parts used in computers

  1. $16$ bits

  2. $8$ bits

  3. $32$ bits

  4. $4$ bits

Show answer
Correct Option: B