Which of the following is both an input and output device?

مندرجہ ذیل میں سے کون سا ان پٹ اور آؤٹ پٹ آلہ ہے؟

Modem

Scanner

Mouse

None of these

Explanation

A modem (Modulator-Demodulator) is both an input and output device as it sends (uploads) and receives (downloads) data over communication networks.

It converts digital signals to analog for transmission and vice versa for reception.