Which input device is used in retail for price scanning? MCQ with Answer and Explanation

Which input device is used in retail for price scanning?

A. Joystick

B. POS barcode scanner

C. Graphics tablet

D. Microphone

Answer: Option B

Speeds up checkout process.

This question belongs to: Computer Computer Hardware

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Question #1 Report Error

What is the advantage of pigment-based inks?

A. Better longevity and water resistance

B. Brighter colors always

C. Faster drying

D. Cheaper

Correct Answer: Option A

Explanation:
For archival prints.

This question belongs to: Computer Computer Hardware

Question #2 Report Error

NVMe is a protocol for:

A. Graphics output

B. Network storage

C. RAM management

D. SSD communication over PCIe

Correct Answer: Option D

Explanation:
NVMe enables faster SSD performance.

This question belongs to: Computer Computer Hardware

Question #3 Report Error

What is the function of a GPU?

A. Text input

B. Scanning

C. Printing

D. Parallel processing for graphics and AI

Correct Answer: Option D

Explanation:
Graphics Processing Unit excels in parallel tasks.

This question belongs to: Computer Computer Hardware