IBM 6643 - Manual (Page 121)

Term Information
SR Service Representative
SRAM Static Random Access Memory
SVGA Super Video Graphics Array (800x600x16)
STN Super Twisted Nematic
T/A NDD Technical Advisor (see your Marketing Representative)
TDD Telecommunications Device for the Deaf
TFT Thin-Film Transistor
TPF ThinkPad File
TSR Terminate and Stay Resident
UL Underwriters Laboratory
VCA Video Capture Adapter
VESA Video Electronics Standards Association
VGA Video Graphics Array (640x480x16)
VPD Vital Product Data
VRAM Video Random Access Memory
WORM Write Once Read Many (storage medium)
XGA Extended Graphics Array
Y/C Luminance/Chrominance Signal (Video)
Chapter 8. Related service information 113