
50 | CHAPTER 3 Computer Science and the Foundation of Kno wledge Model
Printer
Printers are external components that can be attached to a computer using a printer
cord that is secured into the computer’s printer port. Printers enable users to
print a hard paper copy of documents that are housed on the computer.
The most common printer types are the ink jet and the laser printer. Inkjets
are more economic to use, with quite good quality, and apply ink to paper using
a jetspray mechanism. Laser printers produce publisher-ready quality printing if
combined with good quality paper but cost more to print. Both types of printers
can print in black and white ...