Computer is a combination of analog and digital device which is used to compute complex mathematical problems. It is basically a programmable electronic device which performS high speed mathematical and logical operations. The main function of computer is to perform repetitive procedures very quickly and reliably.

The computer can be broadly divided in two sections; one is hardware and the other is software. The hardware is made of electronic circuits and components while the software is the programs required to run the central processing unit or the CPU. Again the hardware is of four type i.e. CPU, input, output and memory device. Now a days looking at the vast uses of computer people are using computer at their offices and at homes for working as well as entertainment purposes.

As we all know that each and every electronic goods need repairing and computer is not excluded from that list. Whenever there is any troubleshoot in this whole procedure the computer seems to function improperly. As a result we need to repair our computer to make it function properly. It is very tedious to repair ones computer and beside that it is also time consuming if the problem is unknown by the repairer. But if anyone has sound information regarding computer repair then it would seem to be rather easier. There are several organizations with trained and qualified technicians to help you out whenever you have problem with your computer. There are also various computer selling organizations who give after sell repairing service completely at free of cost. While there are other computers organizations, which have good computer technicians, provide only repairing service. Each of these companies serves their clients with best technical services. There are also different books or guidelines to provide us various information regarding computer trouble shoot and how to repair them. There are also technical colleges and training institute for technicians to learn more about computer problems and their repairing.

There are computers of various brands such as IBM, HP, Compaq, Dell, Apple etc. in the market and they differ from each other in respect of hardware and software. Therefore their troubleshooting problems also differ from each other. So the technicians should know how to repair these different computers. A good computer technician is required to familiar with various operating systems such as Microsoft Windows, Macintosh, Linux, etc. A good technician must also know how to deal with different computer peripherals such as printers, scanners, fax machines, etc.

Here are few troubleshoots of computers which are very common. They are 1) Power Supply Failure, 2) Motherboard Troubleshooting, 3) Hard Drive Failure 4), CD and DVD Drive Troubleshooting, 5) Modem Failure, 6) Sound and Game Card Failure, 7) Peripheral Failure Virus Threats and many more. At first the technician need to do a complete diagnostic checkup. Then he needs follow those Basic Computer Repairing rules to repair a troubleshooting computer successfully. Beside these computer requires regular update, virus cleaning and modifications. At last we can conclude that if computers are maintained and handled properly then we can prevent our computers from various troubleshoots as we all know that 'prevention is always better than cure'.