Match List I with List II: List I (Input Device) List II (Use) A. Graphics…
2022
Match List I with List II:
List I (Input Device) | List II (Use) |
|---|---|
A. Graphics Tablet | I. To input data at an information kiosk |
B. Touch Screen | II. To input data from a product in a supermarket (at a POS) |
C. Bar Code Reader | III. To input a PIN |
D. Numeric Keypad | IV. To input freehand drawing |
Choose the correct answer from the options given below:
Answer: D. A-IV, B-I, C-II, D-III — ConceptAn input device is chosen according to the kind of physical action or encoded data it must convert into computer-readable input. Direct drawing needs a…
- A.
A-IV, B-II, C-I, D-III
- B.
A-II, B-III, C-I, D-IV
- C.
A-I, B-IV, C-III, D-II
- D.
A-IV, B-I, C-II, D-III
Attempted by 78 students.
Show answer & explanation
Correct answer: D
Concept
An input device is chosen according to the kind of physical action or encoded data it must convert into computer-readable input.
Direct drawing needs a position-sensitive surface, public self-service selection needs touch input, product identification uses encoded labels, and secure digit entry uses a restricted numeric keypad.
Application
Input device | Characteristic use |
|---|---|
Graphics tablet | Captures stylus or pen movement for freehand drawing. |
Touch screen | Accepts direct on-screen selections at a self-service information kiosk. |
Bar code reader | Scans the encoded product label at a supermarket point of sale. |
Numeric keypad | Provides digit-only entry for a personal identification number. |
Cross-check
Each use requires a different input mechanism: drawing coordinates, screen contact, optical code scanning, or numeric key presses.
The one-to-one correspondence is: graphics tablet to freehand drawing, touch screen to information-kiosk input, bar code reader to supermarket product input, and numeric keypad to PIN entry.
Therefore, a graphics tablet maps to freehand drawing; a touch screen to information-kiosk input; a bar code reader to supermarket product input; and a numeric keypad to PIN entry.