Chapter 1, Problem 3CTQ

Explanation of Solution

Difference between input and output:

Input	Output
An input device sends information to a computer system for processing.	An output device reproduces the result of that processing.
It only allows for input of data to a computer.	It receives output of a data from another device...

Explanation of Solution

List of input devices:

• Keyboard:
  • It is an input device that uses buttons or keys as electronic switches.
  • Keyboard keys have characters printed on them and each press represents a single written symbol.
  • It is used as a text entry interface for typing text and numbers to a word processor, text editor or any other program.
• Trackball:
  • It is another pointing input device which consists of a ball held by a socket which contains sensors for detecting the rotation of the ball...

Explanation of Solution

List of output devices:

• Speaker:
  • It is an output device that is used for receiving feedback from interactions.
  • Audio speakers enhance and improve user’s experience.
  • It is actually a necessary requirement for computers.
• Printer:
  • It is an output device commonly used by professionals and those who are in need of a device for academic studies.
  • It allows users to create paper copies for the contents that they author on the computer...

Explanation of Solution

List of output devices:

User review for keyboard:

• If keyboard is not looking to be a mechanical one then it will be of great value.

User review for Trackball:

• It is used mainly for video editing.
• It is very smooth and precise.

User review for Joystick:

• It is of good quality with great and comfortable controller...