This edition of Sams Teach Yourself Upgrading and Fixing PCs in 24 Hours has been updated to include coverage of the latest operating systems (e.g., Windows XP and Linux), utilities, and hardware, including expanded coverage of partitioning software and DVD drives.The book has also been reorganized for ease of use by the beginner, and a detailed glossary and manufacturers reference have been added.Additional information includes: System components - what they are and how they work. Checklists of tools, utilities, and other basic repair items. CMOS settings and how they relate to your hardware. Upgrading a PC's memory. Replacing internal and/or external disk drives. Replacing or upgrading internal/external CD-ROM and DVD drives. Choosing and adding a removable storage drive. Upgrading system boards. Choosing or upgrading a sound card. Choosing or upgrading a video card. Adding/changing monitors. Modems and other communications devices. Selecting and installing a printer. Scanners, digital cameras, and digital video. Upgrading an operating system. Performance monitors, diagnostic tools, virus checkers.