The printer is a device that produces images (numbers, alphabets, graphs, etc)on paper.After creating a document on the computer you can send it to printer for printing its hardcopy which is generally called a print out.
The speed of the printer is rated either by pages per minute ppm or characters per seconds cps. Printers are available in two models
Colour printer are slow and expensive than black and white printer.Some other printers are LED printer and Multi functional printer. LED printer are similar to laser printers.Multi functional printers as the name suggests performs more than one task.