Mind map
Input Devices IGCSE
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Input Devices IGCSE
KEYBOARD
- Allows text,numbers,symbols to be entered into a computer
- limitations
- Difficult for people unable to use keyboards through paralysis
MOUSE
- a pointing device
- need a flat space close to the computer.
KEYPAD
- can enter numeric data
- only has numbers
PINPAD
- used to enter a persons PIN
- not always safe
TOUCH PAD
- pointing device found on laptops
- less space
- slower than mouse
TRACK BALL
- accurate
- slower than mouse
- users have to learn how to use them
REMOTE CONTROL
- send data signals to computer,TV,DVD from a distance
TOUCH SCREEN
- inituitive
- simple to use
- expensive
SENSOR
- senses things
- help measures things
LIGHT PEN
- pointing device to write on a screen
- bad quality compared to new technology
SCANNER
- scans stuff
- difficult,expensive
- need a lot of computer memory to view and edit
- accurate
JOYSTICK
- easier to play games
- Controls can be a bit crude
MICROPHONE
- coverts sound into a signal fed to a computer.
- Stored audio files can take up a lot of memory.
DIGITAL CAMERA
- No film is needed
- images can can easily be transferred to a computer and edited
- Images often have to be compressed to avoid using up too much expensive memory.
MAGNETIC STRIPE READER
- Simple to use
- cheap to produce
- Very limited storage capacity
- Not very secure
VIDEO CAMERA
- takes videos
- take up a great deal of memory.
SMART CARD
- easy to use
- stores large amount of data
- not safe
WEB CAM
- can see people around the world
GRAPHICS TABLET
- accurate draawings
- expensive
BARCODE READER/SCANNER
- easy
- can read the wrong barcode
OCR READER
- scans images of text into an actual text file
MICR READER
- used in banks
- quick and accurate
OMR SCANNER
- mutliple choices can be read easily
- can read wrong
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- Mind Map on Input Devices IGCSE, created by lekshmi on 10/09/2014.
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- lekshmi
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