Tag: computer

Questions Related to computer

Which of the following is an output device?

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

  1. OMR

  2. MICR

  3. Printer

  4. Keyboard

Show answer
Correct Option: C
Explanation:
Printer is an output device as it prints i.e output data from computer.

Which of the following can not be categorised as an input device in a computer?

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

  1. Mouse

  2. Keyboard

  3. Printer

  4. OMR

Show answer
Correct Option: C
Explanation:
As the printer is an output device as it prints data from the computer.

Which of the following is not an alpha-numeric key?

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

  1. 5

  2. <

  3. @

  4. #

Show answer
Correct Option: A
Explanation:
As 5 is numeric key and not alpha-numeric key.

State whether true or false :
DOS refers to Disc Operating System ?

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

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

The above statement is true.

DOS is the acronym for Disk Operating System.

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.