Windows Vista & XP Glossary: D D3D Score: The score that the
Windows Experience Index gives to your computer's ability to
replicate 3D images. DAT: Digital audiotape; A type of computer
backup drive that copies data to a tape. DDR: Double data rate;
A computer DIMM memory module that’s still in general use. DDR2:
Memory modules that double the data transfer rate between your
RAM and your motherboard. default programs option: A Windows
option that allows you to determine which program you want to
run a certain task or open a certain file type. defrag;
defragment: The process that your computer uses to rearrange the
pieces of files and applications on your hard drive so that they
are positioned next to each other on the drive, improving
performance speed. desktop: A type of computer made up of a PC
console, monitor, mouse, keyboard, and any additional
attachments. A desktop PC isn’t easily portable. desktop theme:
A collection of settings that control the appearance and
behavior of the various appearance settin