Glossary

Wireless Modem
A modem that accesses a private wireless data network or a wireless telephone system, such as the CDPD system.

White Book
A standard specification developed by Philips and JVC in 1993 for storing MPEG standard video on CDs. An extension of the Red Book standard for digital audio, Yellow Book standard for CD-ROM, Green Book standard for CD-i, and Orange Book standard for CD Write Once.

WORM (write-once/read-many) memory
A type of permanent optical storage that allows users to record original information on a blank disc, but does not allow erasure or change of that information once it is recorded.

WRAM
Short for Windows RAM, a type of RAM developed by Samsung Electronics that supports two ports. This enables a video adapter to fetch the contents of memory for display at the same time that new bytes are being pumped into memory. This results in much faster display than is possible with conventional single-port RAM. WRAM is similar to VRAM, but achieves even faster performance at less cost because it supports addressing of large blocks (windows) of video memory.