What are the primary functions of input devices in a computer system?

Input devices allow users to provide data and control signals to a computer, facilitating interaction with the system.

The keyboard is an important input device primarily used for ___ and ___.

Entering text and executing commands

True or False: A trackball mouse is designed to move the cursor by rolling a ball with the fingers.

True

What distinguishes optical character recognition (OCR) from magnetic ink character recognition (MICR)?

OCR converts scanned images of text into digital text, while MICR reads text printed with magnetic ink.

Riddle: I can print on paper but do not touch it, I use lasers to ensure my work is perfect. What am I?

A laser printer

Fill in the blank: A ___ is a pointing input device that allows precise control of the cursor on the screen.

Joystick

What is the main advantage of flat-panel displays over cathode-ray tube (CRT) monitors?

Flat-panel displays are lighter, consume less power, and have a slimmer profile compared to CRT monitors.

True or False: Impact printers use a physical mechanism to create images by pressing ink onto paper.

True

What role do output devices play in a computer system?

Output devices convert processed data from the computer into human-readable form, such as text, images, or sounds.

Fill in the blank: The device that uses light and lenses to project images onto a large surface is called a ___.

Projector