This book provides real-world coverage of PC troubleshooting and coverage of the topics required to pass the A+ PC technician exam. It shows readers how to become successful PC technicians by offering comprehensive coverage of both old and new technology and plenty of real-world applications. Chapter topics include A PC overview, basic electronics, the disassembly and assembly of the PC, microprocessors, RAM, motherboards, the expansion slots and cards, the case and power supply, the hard drive, the floppy drive and other removable media, the compact disk drive, the disk structure, tape drives and data protection, the video system, input devices, sound cards, serial ports and modems, parallel ports and printers, MS-DOS, Windows 3.XX, Windows 9X, Windows NT, family operating systems, and computers connected to a network. For future PC techniciansespecially those preparing for the A+ Certification exam. --This text refers to the Paperback edition.