Protecting the PSU. (Power Supply Unit)
The PSU is basically a transformer, converting mains voltage to
the 5, 9, or 12 volts used by the system unit. Irregular mains supply
like lightening or blackouts can damage the PSU and the connected
computer equipment. A UPS (uninterruptible power supply) or surge
protector can help protect systems and provide power for a short
time in the event of a power cut. An alternative to a UPS is a surge
resistant extension plug, they come in different sizes and can also
protect your modems phone line as well.
Turning off your PC
Some people believe that their PC needs to be tuned off when it
is not in use, in fact this is just a myth, PC systems are actually
designed to be left on permanently, when idle they will automatically
cut down on the power they draw. The monitor however should always
be switched off if it is not in use, as it does use a lot of electricity.
What are firewalls?
Firewalls protect computer systems from intrusion and attack from
outsiders.
Is your computer hot?
Electronics do get hot, but they are designed to dissipate heat,
overheating can cause errors. If your computer seems to be overheating
turn it off and get it fixed. The transformers will get warm but
should never be hot, if they are hot it means they are faulty and
need to be replaced. The room temperature can also affect your PC,
if where your computer sits is more than 80°c turn it off, the
hotter the room is the more likely the computer is to malfunction.
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