Monitor
This is sometimes called the
screen or the VDU; it is the main way of getting the processed data out of the
computer. These monitors come in
different shapes and sizes.
This
is a CRT monitor. It uses a Cathode Ray Tube (CRT) which contains an electron
gun.
The most common size is the
14-inch monitor and the size of the monitor is measured diagonally.
Although they come in different capabilities
in terms of colour output their function is still the same to display information
to the user.
The normal PC monitor uses a
Cathode Ray Tube (CRT) which contains an electron gun. This shoots a stream of electrons onto a
screen coated with a phosphorescent substance.
There are control buttons on the monitor that the user can use to adjust
the size, brightness and position of the display area. There is also a power button to turn the
monitor on and off. There is a light
next to the power button to indicate the status of the monitor, whether on or
off.
You should note that switching
off the monitor will not affect your information.
The monitor
works with a video card, located inside the computer case, to display
images and text on the screen.
The two main types are: cathode ray tube
(CRT) and liquid crystal display (LCD) monitors.
The CRT monitor is big, like a tube television, and takes up a lot of desk space; however, it is the least expensive monitor option. The LCD monitor is thin and saves energy, but costs more. Over the years you can expect to see fewer CRT monitors as LCD monitors become the standard.
Your monitor
has an on/off button and control buttons
that allow you to change your monitor's display. Control buttons are either
visible or located behind a small panel. Additionally, some monitors have
built-in speakers.
Whenever you shut down your
computer remember also to switch off the monitor.
The CPU can run continuously for days because
it has got an in-built fan but the monitor needs to be switched off because of
the absence of the in-built fan and can become hot after some time.
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