Page 15 - iPro_trackGPT_V5_Class7
P. 15
Printer: A printer is an output device that produces a physical copy of digital documents on
paper. Printers are classified into two types: impact and non-impact. Impact printers create
images on paper by striking it with a metal pen, while non-impact printers use methods like
spraying ink. Common printers include:
• Dot Matrix Printer: This type of impact printer functions similarly
to a typewriter. The printer head strikes the paper through an ink
ribbon to print characters.
• Inkjet Printer: Inkjet printers are non-impact printers that produce
prints by spraying ink onto paper line by line. They are faster than dot
matrix printers but are more expensive and consume more ink. Inkjet
printers use ink cartridges.
• Laser Printer: Laser printers, another type of non-impact printer,
use a laser beam to transfer toner onto paper. They offer faster
printing speeds and superior print quality compared to inkjet
printers. However, they are more costly and are typically used where
high-quality printing is essential.
Plotters: A plotter is a specialised output device designed to produce high-quality, detailed
graphics and large-scale documents. Unlike printers that use ink or toner, plotters draw
continuous lines with pens, making them ideal for precise technical drawings, architectural
plans, and large-format prints. There are two main types of plotters: drum plotters, which
rotate the paper, and flatbed plotters, which keep the paper flat while drawing. Plotters are
often used in architecture, engineering and design. They are great for making detailed plans
for things like buildings and maps.
Speakers: The speakers are output devices that produce sound
from a computer, including music, speech, and other audio. They
are commonly used for listening to music, watching movies, and
other audio-related activities.
Computer—Hardware Components 13

