Siemens SIMATIC IPC427C Operations Instructions Page 165

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List of abbreviations
C.1 Abbreviations
SIMATIC IPC427C
Operating Instructions, 10/2010, A5E02414743-03
165
Abbreviation Term Meaning
SO-DIMM Small Outline Dual Inline Memory Module
SOM SafeCard on Motherboard (SOM)
SPP Standard Parallel Port Synonym for parallel port
SRAM Static Random Access Memory Static RAM
SSD Solid State Drive
SVGA Super Video Graphics Array Enhanced VGA standard with at least 256 colors
SVP Serial number of the device
SW Software
TCO Total Cost of Ownership
TFT Thin-Film-Transistor Type of LCD flat-screen
TTY Tele Type Asynchronous data transfer
TxD Transmit Data Data transfer signal
TXT Trusted Execution Technology Hardware implementation
TWD Watchdog Time Watchdog monitoring time
UEFI Unified Extensible Firmware Interface
UL Underwriters Laboratories Inc. US organization for tests and certifications
according to own or binational standards (with
CSA / Canada) standards
UMA Unified Memory Architecture Video memory
URL Uniform Resource Locator Designation of the full address of an Internet
page
USB Universal Serial Bus
UXGA Ultra Extended Graphics Array Graphic standard, maximum resolution
1600x1200 pixels.
V.24 ITU-T standardized recommendation for data
transfer via serial ports
VCC Positive supply voltage of integrated circuits
VDE Verein deutscher Elektrotechniker (Union
of German Electrical Engineers)
VGA Video Graphics Array Video adapter which meets industrial standard
VRM Voltage Regulator Module
VT Virtualization Technology Intel technology with which a virtually closed
environment can be made available.
VT-D Virtualization Technology for Directed I/O Enables the direct assignment of a device (e.g.
network adapter) to a virtual device.
W2k Windows 2000
WAN Wide Area Network
WAV Wave Length Encoding Loss-free file format for audio data
WD Watchdog Program monitoring with error detection and
alarming.
WLAN Wireless LAN LWireless local area network
WoL Wake on Local Area Network
WWW World Wide Web
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