Written in a straightforward, easy to read style, Rob Beales provides the knowledge and techniques needed to build, troubleshoot, and maintain personal computer systems. Divided into three parts, Part 1 forms an introduction to digital computers, leading the reader through the various parts of a modern PC system, including popular peripherals and networking concepts. Part 2 contains a step-by-step guide on the assembly and configuration of a complete state-of-the-art PC system, including a section on the use of important Windows 98 / ME / 2000 / XP applications and components. Part 3 covers preventative, predictive and corrective maintenance, based in typical current work practice - a major part of the IT practitioner's work schedule. Updated throughout in line with current technologies, the second edition is also designed to cover the latest specifications of BTEC National and City and Guilds e-Quals (400 and 500) courses, and the A+ certification, in addition to meeting the needs of the general PC user.