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S

SACD - Super Audio Compact Disc: This new sound memory was developed by Philips and Sony (1999) and delivers higher frequencies and more dynamics than the standard CD-DA. See also: DVD, HDCD.
SCSI - Small Computer System Interface: A system interface standard for input/output devices like harddrives, CD-ROM drives, CDRs, scanners, modems, etc.
SDMI - Secure Digital Music Initiative: An initiative, forced by the music industry, to replace MP3 as the standard format for commercial music productions. It includes a copy protection system. See also AAC.
SGML - Standard Generalized Markup Language: This language was designed by Dr. Charles F. Goldfarb to describe markup languages (so-called SGML applications). The description is called DTD.
SGML is defined in the standard ISO 8879.
SLIP - Serial Line Internet Protocol: A transfer protocol for serial connections to the Internet, based on TCP/IP. Meanwhile, this protocol is mostly replaced by PPP.
SMD - Surface-Mounted Device: A type of IC cover design.
SMPTE - Society of Motion Picture and Television Engineers: The SMPTE timecode is used on many video- and audio-tapes to syncronize digital cutting machines.
SMTP - Simple Mail Transfer Protocol: A protocol for E-Mail transfers to an ISP.
SSA - Super Smooth Animation: A file format for animation files which uses interlaced images to smoothen the animation.

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