The document discusses input devices and their functions. It defines input as any data or instruction entered into a computer's memory. There are four main types of input: text, audio, graphic, and video. Input devices are electronic devices connected to a computer that produce input signals. Examples of input devices include keyboards and mice for text, microphones and MIDI keyboards for audio, scanners and digital cameras for graphics, and webcams and digital video cameras for video. The objective is for students to understand the meaning and functions of different input devices.

1. Input Devices

2. Objective today
At the end of lesson, students should be able to:
1.Correctly write down the meaning of input
devices.
2.Verbally explain the meaning of input devices
with at least one example.
3.Verbally state the respective functions of input
devices with at least one example.

4. What is input ?
Input is any data or instruction
that you enter into the memory of a computer

5. How many types of input ?
There are four types of input:
which are text, graphic, audio and video

6. What is input devices ?
Input devices are any electronic device
connected to a computer and products
input signals.

7. INPUT
Input is any data or instruction
that you enter into the memory of a computer
TYPE OF INPUT
Text Audio Graphic Video

8. TEXT DEVICES
Keyboard
Virtual Keyboard
Optical Reader Bar code Reader

9. GRAPHIC DEVICES
Scanner
Digital Camera

10. AUDIO DEVICES
Microphone
Midi Keyboard

11. VIDEO DEVICES
Webcam
Closed-Circuit Television (CCTV)
Digital Video Camera

12. POINTING DEVICES
Mouse
Touch Screen
Track Ball
Graphic Tablet

13. Text Audio Graphic Video
TYPE OF INPUT DEVICES
1. _________
2. _________
3. _________
4. _________
Pointing
1. _________
2. _________
1. _________
2. _________
1. _________
2. _________
3. _________
1. _________
2. _________
3. _________
4. _________
Mouse
Touch ScreenTrack Ball
Graphic Tablet
Webcam
Closed-Circuit Television (CCTV)
Digital Video CameraMicrophoneMidi Keyboard
Keyboard Virtual Keyboard Optical Reader
Bar code Reader
ScannerDigital Camera

16. Evaluation