Class 4 Input and Output Devices Question Answers

Last updated on September 27th, 2022 at 01:13 pm

Class 4 Input and Output Devices Question Answers

Class 4 Input and Output Devices Question Answers | Class 4 Computer Question Answers
| for the students to prepare for their exams……….

Fill in the blanks: –

  1. …………. is a pattern of parallel lines of varying width printed on various products.
  2. …………. project images (or moving images) onto a large projection screen.
  3. Data printed in MICR typeface are recognized by …………. technology.
  4. A …………. device recognizes users by their fingerprints, faces, or voices.

 

Answers: –

  1. Barcodes
  2. Projector
  3. MICR
  4. Biometric

 

Answer in one word-

 

By simply touching the screen, you can select options on the computer

Ans- Touchscreen

 

A device that uses one or more automated pens to draw on paper.

Ans -Plotter

 

A device used to control industrial robots and play computer games.

Ans- Joystick

 

Which device is used to project images onto a large area

Ans – Projector

 

 

Answer the following question: –

 

What is a scanner?

Information printed on paper or other media can be scanned using a scanner. To process the scanned information, the information is transferred to a computer’s hard drive. This is done by scanning the data with a light beam. There are different kinds of scanners.

Updated: September 27, 2022 — 1:13 pm

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