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Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system.It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again.
They are less commonly used in the 21st century for computer repair and by system integrators, but remain available. POST cards for PCs, while originally high-priced, cost from just a few US dollars upwards in the 21st century. Some motherboards have a built-in display to diagnose hardware problems.
The PS/2 mouse connector generally replaced the older DE-9 RS-232 "serial mouse" connector, while the PS/2 keyboard connector replaced the larger 5-pin/180° DIN connector used in the IBM PC/AT design. The PS/2 keyboard port is electrically and logically identical to the IBM AT keyboard port, differing only in the type of electrical connector used.
The Input tab, displays information about input devices installed in the computer such as keyboards and mice. It will also attempt to detect problems with these devices. DirectX Diagnostic Tool also displays information about the installed DirectPlay Service Provider.
Keyboard 400–499: Monochrome display 500–599: Color/graphics display 600–699: Floppy-disk drive or adapter 700–799: Math coprocessor 900–999: Parallel printer port 1000–1099: Alternate printer adapter 1100–1299: Asynchronous communication device, adapter, or port 1300–1399: Game port 1400–1499: Color/graphics printer 1500–1599
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A computer repair technician is a person who repairs and maintains computers and servers. The technician 's responsibilities may extend to include building or configuring new hardware , installing and updating software packages, and creating and maintaining computer networks .
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