A computer technician is trained to troubleshoot and correct system problems. Similar to a carpenter, electrician or telecommunications repair expert, a computer technician must have a list of tools to troubleshoot and repair hardware and software problems. Most technicians use similar hardware and software tools.
LAN/WAN Testing Software
A technician uses LAN/WAN software for testing network topologies and configurations to detect problems concerning the speed of a network or to diagnose network crashes. A customer may mention to a technician that the LAN/WAN is slow when opening applications, sending interoffice e-mail or using the Internet. The software detects where the problem is on the network and what device or component is causing the problem.
A DVD burner tests the read/write capability of a faulty DVD device in a computer. A faulty DVD burner can initiate a "burning" or copying session only to fail or time out at the end of a session. The technician uses his DVD burner to troubleshoot whether the problem is the device, a faulty cable or a chip on the motherboard that causes the device to fail.
Cables can wear out and cause device errors. Technicians carry serial cables (male and female), RJ-45 cables, category 5 network cables and regular phone cables. For example, an RS-232 may not work when interfaced to the serial port of a printer. The technician can use an RS-232 cable from stock to test the line. If the cable is the problem, the technician can recommend the installation of a new cable.
Technicians need software to test, troubleshoot and repair system utilities, virus intrusion and security configurations. A client may have a problem with software applications not performing correctly. Systems utility software can pinpoint where the problem is on the system. Once the technician has detected the problem, various combinations of software can be used to restore the system to a usable state.
A computer technician's toolkit includes specialised tools to install or remove computer parts, electrical components or create items on the spot such as wiring and cables. For example, a basic toolkit consists of pliers for the removal of computer chips such as the CPU or any small chip on the motherboard of the computer. These kits can be purchased at a computer repair shop.
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