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:

Correct option is A

· Barcode Reader, Graphic Tablet, and Microphone are input devices.
· Barcode Reader scans and inputs barcodes.
· Graphic Tablet allows users to draw or input data using a stylus.
· Microphone captures audio input.
· Speaker is an output device.
· MODEM (Modulator-Demodulator) serves both input and output functions, as it sends and receives data.
Information Booster:
1. Input devices are hardware components used to provide data and control signals to a computer.
2. Output devices are used to output data from the computer to the user.
Additional Knowledge:
· MODEM is a combination of input/output as it sends and receives signals from the internet.
· Speaker only outputs sound from the computer.