The document provides an introduction to input and output devices used in computing. It describes various components such as memory, monitors, computer cases, microphones, mice, keyboards, and speakers, explaining their functions and roles in data processing. Overall, it emphasizes the importance of these devices in facilitating user interaction with computers.

1. INTRODUCTION TO INPUT
AND OUTPUT DEVICES
PREPARED BY: M USMAN NASIR

2.  INTRODUCTIION TO INPUT AND OUTPUT
Memory - holds instructions and most of the data for currently executing
programs.
 Input - external devices such as keyboards, mice, disks, and networks that
provide input to the processor.
 Output - external devices such as displays, printers, disks, and networks
that receive data from the processor.

3.  MONITOR :
The Monitor is a TV-like device. It displays
the results of your work on its screen.
The screen is called display screen. Now
LCDs are also available in the market for
same purpose

4.  CASE:
A computer case, also
known as a computer
chassis, is the
enclosure that
contains most of the
components of a
personal
computer (usually
excluding the display,
keyboard, and mouse).

5. MIC:
A microphone,
colloquially called a mic
or mike (/mark/), is a
transducer that converts
sound into an electrical
signal.

6.  MOUSE
The Mouse is an input device
that controls the movement of
the cursor or pointer on a
display screen and performs
other functions include
selecting files, opening
menus, etc.

7. KEYBOARD:
The Keyboard is manually
operated input device for
alphanumeric data, and providing
other instructions.

8.  SPEAKERS:
Speakers are devices that
provide output in the form
of sounds. They enable the
user to listen to music,
speech, or any other
sounds.

9. THE END
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