Most common faults and solutions in a computer

The sound in a computer
There is nearly always a problem with the sound in a computerbut there is many solutions to this. the solutions are as follwed: Check the back of the computer and be sure the external speakers are plugged in, Some computers may have speaker connections on both the soundcard and modem, you will need to plug the single stereo speaker plug into the socket on the soundcard usually marked audio out (orin some cases speaker) and sometimes the correct audio driver needs to be installed.
The computer starts up as normal but nothing appears on the screen
The problem with this usually occurs with an unplugged lead in the back of a computer even though this is quite simple. If the problem still proceeds then you may want to buy a new power lead.
Windows Crashing
Sometimes the computer may crash for no apparent reason but this usually occurs on windows based operating systems as there is a fault, a solution could be just to back up your system regularly and be sure to keep it maintained.
Fuzzy image on monitor
Monitors can be very sensitive to electro magnetic interference, so the problem would usually lie with a television, microwave, Radio's,dishawashers and the most common interference would be the mobile phone.
DOA (Dead on Arrival)
Sometimes when ordering a computer for delivery off a website the computer could come to your house and it may not work, this is called DOA and the only form of solution to this would be to send it back immediately.