PRINTER:
A printer is an output device that prints paper documents. This
includes text documents, images, or a combination of both. The two most common
types of printers are inkjet and laser
printers. Inkjet printers are commonly used by consumers, while laser printers
are a typical choice for businesses. Dot
matrix printers, which have
become increasingly rare, are still used for basic text printing.
The printed output
produced by a printer is often called a hard
copy, which is the physical version of an electronic document. While some
printers can only print black and white hard copies, most printers today can
produce color prints. In fact, many home printers can now produce high-quality
photo prints that rival professionally developed photos. This is because modern
printers have a high DPI (dots per inch) setting, which allows
documents to printed with a very fine resolution.
In order to print
a document, the electronic data must be sent from the computer to the printer.
Many software programs, such as word
processors and image editing
programs, include a "Print..." option in the File menu. When you
select "Print," you will typically presented with a Print dialog box. This box allows you to
select the print output settings before sending the document to the printer.
After choosing the appropriate settings, you can hit the Print button, which
will send the document to the printer.
Of course for the
document to print, the printer must be turned on and connected to the computer.
Most modern printers are connected using a standard USB cable.
However, some printers can be wirelessly connected to one or more computers
over a Wi-Fi network. You can also use more than
one printer on a single computer, as long as the correct drivers are installed.
TYPES OF PRINTER:
There are two important types of Printers: