Which of the following peripheral devices are considered as only input…
2022
Which of the following peripheral devices are considered as only input devices?
(A) Speaker
(B) Barcode Reader
(C) MODEM
(D) Graphic Tablet
(E) Microphone
Choose the correct answer from the options given below :
Answer: A. (B), (D) and (E) only — CONCEPTA peripheral is classified by the direction in which it moves data relative to the computer. An input-only device sends captured data to the computer;…
- A.
(B), (D) and (E) only
- B.
(B), (C) and (D) only
- C.
(A), (B) and (E) only
- D.
(C), (D) and (E) only
Attempted by 57 students.
Show answer & explanation
Correct answer: A
CONCEPT
A peripheral is classified by the direction in which it moves data relative to the computer.
An input-only device sends captured data to the computer; an output-only device receives data from it; a communication device such as a modem can both transmit and receive.
APPLICATION
A barcode reader captures a printed code and sends the decoded data to the computer, so it functions as an input device.
A graphics tablet captures stylus position and movement and sends those coordinates to the computer, so it functions as an input device.
A microphone converts sound into an electrical or digital signal and sends it to the computer, so it functions as an input device.
CROSS-CHECK / CONTRAST
A speaker receives an audio signal from the computer and produces sound, so it is an output device.
A modem transmits and receives communication signals, so it is not an input-only device.
Therefore, the input-only set is Barcode Reader, Graphic Tablet, and Microphone.