Types of printers

SPEAKER

Speaker are the output devices used to listen to 
 music and sound effects form the computer. 
they may be built into the system  unit or
connected with cables to CPU.

PRINTER

It is an important Prat of a computer system.
It Prints the output onto paper. The printed
copy is called the hard copy. the most commonly
 used printers are Dot matrix, Inkjet and laser  
printers.

Dot Matrix Printer

The Dot Matrix printer work like a typewriter 
and creates impression by striking on the paper.
It is very noisy and least expensive. Dot Matrix
printer are not so common nowadays.

Inkjet Printers

The Inkjet printer sprays droplets of ink on paper
to from text and graphics. It is ideal for routine 
business work and personal documents . It can
print the black as well as produce colored
output. It produces high quality prints when used 
with special paper.