A presentation of various Output devices of ICT systems.

1. 1.2 Output Devices
These are devices that are used to obtain output from the
computer.

2.  Types
 Flatbed
 Drum
 Uses
1. used to produce
printout of graphs
2. sometimes used to
produce billboards and
signs
Advantages Disadvantages
extremely large
printouts can be
produced
they are very slow to
produce outputs.
the graphic output is of
very high quality
filled areas of colors are
difficult to produce using pen
plotters
they are very expensive
2. Plotters

3.  Uses
1. used in applications
where low noise is
essential.
2. Essential in applications
which require fast,
high-quality, high-
volume output, for
example in most offices
and school.
3. Laser Printers

4. Advantages Disadvantages
• Fast output is achieved. • Limited in the paper size that they can
take.
• Running costs are cheaper than
inkjet printers.
• Large printout jobs can be
carried out quickly.
• Initial costs are high as they are
expensive.
• Quality of printing tends to be
higher than other printers.
• First page can be slow to print.
• Toner cartridges last much
longer than inkjet cartridges.

5. 4. Inkjet Printers
 Uses
1. used where there are low
output volumes.
2. Very good when
applications require very
high-quality output and
where speed is not an
issue.
3. Inkjet printers are being
developed that will create
three-dimensional models.

6. Advantages Disadvantages
• Produce high quality
output.
• Slow to print more than
one page.
• Fast for printing
one-page
documents.
• Cheaper to buy
than other printers.
• More expensive to run
because inkjet
cartridges don’t last as
longer as toner
cartridges.
• Easier to move than
other printers.
• First page can be slow
to print.

7. 5. Dot Matrix Printers
 Uses
1. can work in environments
which would cause
problems for laser and
inkjet printers.
2. used in noisy
environment such as
garages and car servicing,
car sales and car repair
services.
Advantages Disadvantages
• dirty and noisy
environments do not
affect the printer
• are very noisy and
so unsuitable for
most office
environment.• produces carbon
copies
• running costs are
low
• are now more
expensive than
inkjet printers.
• continuous print jobs
using pre-printed
stationary are more
easily managed
• are most slowest
type of printers.

8. 6. Speakers
 Uses
1. speakers are required to
play sound files attached
to multimedia
presentations and
websites
2. computers and MP3
players use speakers to
play music from CDs and
DVDs
3. speakers are integral part
of home entertainment
systems