Output Devices

Output Devices

An output device has been processed and the computer is giving us feedback.Here is a list of output devices and their meaning.

1) Printer : Printer information is called hard copy. These are needed to compensate for the difference in speeds between the CPU and the printer. 

Impact Printers: forms characters and graphics on a piece of paper.
Non-Impact Printers:  forms characters on paper without striking the paper.

There are four types of printers : Dot-matrix , Ink-jet printer ,Laser printer and plotter printer.

2) Raster and Vector images : Raster images are not accurate ; they show dots and pixels on the picture. On the other hand vector images are more accurate.

For disabled persons there are braille printers and keyboards , special purpose keyboards , eye sensor readers and speech recognition.