Free CompTIA Tech+ Certification Exam Practice Questions

Input devices allow users to interact with the computer by sending data to it. The most common input devices for a desktop PC setup are:

Mouse – allows the user to point, click, and interact with the GUI.

Keyboard – used to enter text and commands.

“Input devices such as the keyboard and mouse are essential for entering data into a computer.” — CompTIA ITF+ Study Guide

Other options explained:

A.  

Printer – Output device

D.  

CPU – Core processing unit, not an input device

E.  

Speaker – Output device

F.  

SSD – Storage device

Correct answers: B and C

A touch screen functions as both an input and output device. According to the CompTIA ITF+ FC0-U71 Official Study Guide:

" A touchscreen display is a hybrid device combining input and output. It shows visual output like a standard monitor but also allows the user to interact directly by touching the screen. "

" Input devices allow users to provide data or control signals (e.g., keyboard, mouse, touchscreen). "

" Output devices show results from the computer ' s processing (e.g., monitor, printer, touchscreen). "

Touchscreens display information (output) and receive user input through touch (input). They do not perform storage, networking, processing, or logging.