Page 171 - DCAP403_Operating System

Operating System

Notes Plotter: A plotter is a vector graphics printing device to print graphical plots, that connects
to a computer. There are two types of main plotters. Those are pen plotters and electrostatic
plotters.

Figure 9.11: Plotter

Fax: Fax (short for facsimile, from Latin fac simile, “make similar”, i.e. “make a copy”) is a
telecommunications technology used to transfer copies (facsimiles) of documents, especially
using affordable devices operating over the telephone network. The word telefax, short for
telefacsimile, for “make a copy at a distance”, is also used as a synonym. Although fax is not an
acronym, it is often written as “FAX”.
Figure 9.12: Fax

Monitors: A visual display unit, often called simply a monitor or display, is a piece of electrical
equipment which displays images generated from the video output of devices such as computers,
without producing a permanent record. Most new monitors typically consist of a TFT LCD,
with older monitors based around a cathode ray tube (CRT). Almost all of the mainstream new
monitors being sold on market now are LCD.

Figure 9.13: Monitor

Speakers: A hardware device connected to a computer’s sound card that outputs sounds
generated by the card.

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