what is printer?

what is printer?

                                                   PRINTERS printers are used to produce hard-copy of computer output, normally data or text... 02:17

                                                  PRINTERS
printers are used to produce hard-copy of computer output, normally data or text., but also in case of certain printers, graphics, that is, such as drawings or chart sprinters vary in capabilities so far as text enhancements such as underlining or emboldening are concerned and also in their ability to print graphics.

most printers are designed to receive data in parallel from the computer, i.e., 8 bits at time. these have to be connected to the parallel port on the computer.

computer printers differ in the following aspects:

.    there are character printers, which print one character at a time, line printers, which print a line at a time, and page printer, which print a page at a time.
.  a variety of printing technologies are possible, the main ones being dot matrix, daisy wheel, inkjet and laser.
.  some printers can only handle text whereas others can handles text and

graphic.
.  their are a variety of standards for control codes, which are commands, sent from the computer to the printer to turn on effects such as underlining and emboldening.

however most software packages are able to cope with these diffrences. they do so by means of printer drivers, special programs that adapt the output from the software to the printer. all you have to do is select your printer's name from the list that is presented to you when you first use the software.
the main types of printers are described below. the main difference between the printers depends on:
. the quality of output
.   the ability to printer graphics
.  the printing speed