Match the output devices in List I with their technical functions in List II.…
2025
Match the output devices in List I with their technical functions in List II.
List I — Output devices
A. CRT Monitor
B. Flat-Panel Monitor
C. Printer
D. Projector
List II — Functions
I. Uses an LCD screen to show output.
II. Converts a text document into physical form.
III. Acts as a transmitter.
IV. Uses an electron beam to paint a picture.
Choose the correct answer from the options given below:
Answer: B. A-IV, B-I, C-II, D-III — ConceptAn output device is matched by its physical output mechanism: a display forms a visual image, a printer creates a hard copy, and a projector sends…
- A.
A-II, B-III, C-IV, D-I
- B.
A-IV, B-I, C-II, D-III
- C.
A-III, B-IV, C-II, D-I
- D.
A-III, B-I, C-IV, D-II
Attempted by 554 students.
Show answer & explanation
Correct answer: B
Concept
An output device is matched by its physical output mechanism: a display forms a visual image, a printer creates a hard copy, and a projector sends visual output onto another surface.
In a matching problem, determine every device–function relationship independently before comparing the complete code.
Application
Device | Identifying mechanism | Function label |
|---|---|---|
CRT Monitor | An electron beam scans the phosphor-coated screen to form the picture. | IV |
Flat-Panel Monitor | An LCD panel controls light to display the output. | I |
Printer | It converts a text document into a physical hard copy. | II |
Projector | It projects/transmits visual output onto a larger surface. | III |
Cross-check and contrast
A-II, B-III, C-IV, D-I assigns hard-copy conversion to the CRT monitor and LCD display to the projector.
A-III, B-IV, C-II, D-I assigns transmitter operation to the CRT monitor and electron-beam display to the flat-panel monitor.
A-III, B-I, C-IV, D-II assigns electron-beam display to the printer and hard-copy conversion to the projector.
Result
The complete matching is A-IV, B-I, C-II, D-III.