27/07/2026
Output Devices
*1. Meaning of Output Devices*
Output devices are hardware components of a computer that receive processed data from the computer and present the results to the user in a form we can understand.
*In short*: They show the results of the computer’s work so we can see, hear, or use them.
*2. Characteristics of Output Devices*
- *Show or produce the results* of processing
- *Receive data from the computer* only
- *Do not send data to the computer*
- *Help us see, hear, or get the output* in a usable form
*3. Common Output Devices and Their Functions*
1. *Monitor*
Displays information on the screen.
Shows text, pictures, videos, and graphics.
_Example_: The screen you use to see what you’re typing.
2. *Printer*
Produces a hard copy of information on paper.
_Example_: Printing an assignment, letter, or photo.
3. *Speakers*
Output sound so we can hear music, voices, and system alerts.
_Example_: Listening to music or a video without wearing anything.
4. *Headphones*
Work like speakers but are worn on the ears for private listening.
_Example_: Listening to music in class or on the bus without disturbing others.
5. *Projector*
Displays the computer’s screen on a big wall or whiteboard for a large audience.
_Example_: Teachers using it in class or for presentations.
6. *Plotter*
Prints large and detailed drawings such as maps and building plans.
_Example_: Architects printing building designs.
*4. Difference Between Input and Output Devices - Quick Reminder*
Input devices send data TO the computer.
Output devices take data FROM the computer and give results to us.
*5. Summary*
Output devices are very important because without them we would not know what the computer has done with the data. They convert computer data into forms we can see, hear, or hold.
*6. Evaluation Questions*
1. What is an output device?
2. List 4 characteristics of output devices.
3. Mention 3 output devices
