1. Input Devices Hardware
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2. Input devices There are a huge range of input devices on the market.
These fall into two main groups:
Manual Input and
Automatic Data Capture.
Manual Input include devices such as the keyboard and mouse, where the user has to put the data in by hand.

3. Automatic Data Capture devices collect the data automatically and feed it straight into a computer. Some of them are operated by people, like bar-code scanners, but some devices just collect data, such as web cams and data loggers.
Automatic data capture tends to cut down on errors compared to manual data entry.
It is usually quicker too – imagine how long the supermarket queue would be if every number on the bar-code had to be typed by hand.
However, they tend to be more expensive, and so are usually used when there is a lot of data to capture.

4. Input by touch
With thanks to Logitech.

5. Input by light
With thanks to Evesham Technology and Worth.

6. Other input

7. Input devices all around us
Guide to the hotspots:
click on ATM: ATM – keyboard.
click on bank: Cheque processing – MICR.
click on newsagent: Lottery – OMR.
click on post office: Post sorting – OCR.
click on supermarket: Supermarket – bar code reader.
click on camera: Street camera – CCTV.
click on pelican crossing: Pelican crossing – switch.
click on bus stop: Bus stop – touch screen.
click on Big Bite burger sign: Burger bar – concept keyboard.

8. Input devices around us Input Device Place Used Purpose
OMR
Newsagent
Lottery ticket
Touch screen
Bus stop
Plan your journey
Keyboard
ATM outside bank
Withdraw money
OCR
Post Office
Sorting letters
Concept keyboard
Burger bar
Price-up orders
MICR
Bank
Processing cheques
Bar-code reader
Supermarket
Finding cost of items
CCTV
Street
Security in street
Switch
Pelican crossing
Change traffic lights

9. Summary
Input devices fall into two main categories: manual devices and automatic data capture devices.
Data can be input by touch, sound, light, control, magnetism and electronic means.
Input devices are being used all around us in daily life.