Match List-I with List-II List I List II Input Device Most Appropriate use A.…
2023
Match List-I with List-II
List I | List II |
|---|---|
Input Device | Most Appropriate use |
A. Bar Code Reader | I. To enter hard copy images into a computer |
B. Microphone | II. To select items from a menu in a software |
C. Scanner | III. To input data from a food item in a mall at a Point-Of-Sale (POS) terminal |
D. Mouse | IV. To create a voice over a presentation |
Answer: A. A-III, B-IV, C-I, D-II — ConceptAn input device converts a physical action or signal into data that a computer can process. To match a device with its most appropriate use, identify…
- A.
A-III, B-IV, C-I, D-II
- B.
A-III, B-I, C-IV, D-II
- C.
A-II, B-IV, C-I, D-III
- D.
A-IV, B-II, C-III, D-I
Attempted by 43 students.
Show answer & explanation
Correct answer: A
Concept
An input device converts a physical action or signal into data that a computer can process.
To match a device with its most appropriate use, identify what the device senses: printed codes, sound, paper images, or pointer movement.
Application
Device | What it captures or controls | Matched use |
|---|---|---|
Bar code reader | Encoded bars printed on a product | III — product data at a point-of-sale terminal |
Microphone | Spoken sound | IV — voice-over for a presentation |
Scanner | A photograph or other hard-copy image | I — hard-copy images entered into a computer |
Mouse | On-screen pointer movement and clicks | II — selection from a software menu |
Cross-check
Printed product code → bar code reader → point-of-sale data.
Voice → microphone → presentation narration.
Paper image → scanner → digital image.
Pointer movement and clicks → mouse → menu selection.
Therefore, the matched sequence is A–III, B–IV, C–I, D–II.