What is input?
Input is any data and instructions entered into the memory of a computer
( keyboard, pointing devices, touch screen, pen input and etc)
Keyboard : an input device that contains keys users press to enter data and instructions into a computer or mobile device
Pointing devices : A pointer is a small symbol on the screen whose location and shape change as a user moves a pointing device
A mouse is a pointing device that fits under the palm of your hand comfortably
Touch screen - A touch-sensitive display device.
Pen Input - touch a stylus or digital pen on a flat surface to write, draw, or make selections
What is output?
Data that has been processed into a useful form
( display, monitor, printer, etc )
Display - visually conveys text, graphics, and video information
Monitor - a display that is packaged as a separate peripheral device
Printer - produces text and graphics on a physical medium
Assistive Technology Input and Output
braille input
braille printer
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