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2. Cleaning the Mouse
Cleaning the mouse is the next step to keeping your
computer physically fit. There are two main types of
mouse: optical and mechanical.
An optical mouse is an advanced computer pointing
device that uses a light-emitting diode (LED) and an
optical sensor. This type of mouse does not require
any internal cleaning since there are no rotating parts;
however, they can get sticky over time as dust collects near Optical mouse
the light emitter. This can cause erratic cursor movement
or prevent the mouse from working. You must clean the
surface of the mouse and the mouse pad regularly to
prevent dust from accumulating on the mouse.
Mechanical mouse uses a rubber ball that makes contact with wheels
inside the unit when it is rolled on a pad or desktop. This type of mouse
is especially susceptible to dust and particles that can accumulate
inside the mouse, which can make it difficult to track or move properly.
If the mouse pointer does not move smoothly, you will have to clean
the rubber ball.
Mechanical mouse
3. Cleaning the Monitor
Cleaning the monitor is the third step to keep your computer physically fit. Dirt,
fingerprints and dust can make your computer screen difficult to read; however, it is
easy to clean your screen when needed. But, before cleaning you should:
✶ Shut down the computer.
✶ Unplug the monitor from the power.
✶ If you are using a laptop, shut it down.
Use a soft and clean cloth to wipe the screen clean.
Do not spray any liquid directly on the screen. The liquid can leak into Cleaning the Monitor
the monitor and damage the internal components.
Clickipedia
Do not use glass cleaner to clean a monitor. Many screens have anti-glare coatings that can
get damaged by glass cleaners.
PROTECTING YOUR COMPUTER FROM ILLEGAL ACCESS
You have studied about how to keep your computer physically fit. It is equally important to
prevent damage or misuse of data, software or hardware of a computer and restrict unauthorised
access to it.
Computer Safety and Security 65

