Peter Norton's Guide to Upgrading and Repairing PCs provides expert advice using a friendly, step-by-step approach. Understand how each component of your PC system functions and why earlier models and technologies can often prove to be bottlenecks in your day-to-day work. Learn about the new technologies, such as MMX-equippted Pentium IIs, DVD, USB and FireWire, and determine whether each spells death or renewal for your aging PC and existing peripherals.