Upgrading and Repairing PCs (6th edition) by Scott Mueller

By Scott Mueller

The number one promoting identify out there. This new version shifts the focal point from IBM computers to Intel-based structures and is up-to-date to handle home windows ninety five and home windows NT 4.0 matters and matters. an entire replace of Communications and Networking part covers contemporary improvements and web concerns.

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Extra info for Upgrading and Repairing PCs (6th edition)

Sample text

1 summarizes the primary differences between a standard PC (or XT) system and an AT system. This information distinguishes between these systems and includes all IBM and compatible models. 88M Keyboard interface Unidirectional Bidirectional CMOS memory/clock No Yes Serial-port UART type 8250B 16450/16550A This table highlights the primary differences between PC/XT and AT architecture. Using this information, you can properly categorize virtually any system as a PC/XT type or an AT type. There really have been no PC/XT type (8-bit) systems manufactured for many years.

One of the biggest problems in troubleshooting, servicing, or upgrading a system is having proper documentation. There are several types of documentation available for a given system, from the basic manuals you normally get with the system, to extra cost technical reference or service manuals. Also, because most systems today are made up of components from many different companies, I often recommend obtaining documentation specific to these components from the component manufacturers. Generally, the type of documentation provided for a system is proportionate to the size of the manufacturing company.

These publications provide basic interface and design information for the system units. The manuals include information about the system board, math coprocessor, power supply, video subsystem, keyboard, instruction sets, and other features of the system. You need this information for integrating and installing aftermarket floppy and hard disk drives, memory boards, keyboards, network adapters, and virtually anything else that you want to plug into your system. This type of manual often contains schematic diagrams showing the circuit layout of the motherboard and pinouts for the various connectors and jumpers.

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