Abbreviations
C.1 Abbreviations
SIMATIC Box PC 627
Operating Instructions, Release 05/2006, A5E00362052-03
C-3
Abbreviation Term Meaning
HTML Hyper Text Markup Language Script language for creating Internet pages.
HTTP Hypertext Transfer Protocol Protocol for data transfer on the Internet
Hardware Hardware
I/O Input/Output Data input/output on computers
IDE Integrated Device Electronics
IEC International Electronical Commission
IP Ingress Protection Degree of protection
IR Infrared Infrared
IRDA Infrared Data Association Standard for data transfer via IR module
IRQ Interrupt Request Interrupt request
ISA Industry Standard Architecture Bus for expansion modules
IT Information Technology Information technology
LAN Local Area Network Computer network that is limited to a local area.
LCD Liquid Crystal Display Liquid crystal display
LEDs Light Emitting Diode Light emitting diode
LPT Line Printer Printer port
LVDS Low Voltage Differential Signaling
LW Disk drive
MAC Media access control Media access control
MC Memory Card Memory card in credit card format
MLFB Machine-readable product designation
MMC Micro Memory Card Memory card with the format 32 x 24.5 mm
MPI Multipoint-capable interface for
programming devices
MS-DOS Microsoft Disc Operating System
MTBF Mean Time Between Failures
MUI Multilanguage User Interface Language localization in Windows
NA Not Applicable
NAMUR Normenarbeitsgemeinschaft für Mess- und
Regelungstechnik in der chemischen
Industrie (standardization body for
instrumentation and control technology in
the chemicals industry)
NC Not Connected Not connected
NCQ Native Command Queuing Automatic re-sorting of the file and disk access,
for increased performance
NEMA National Electrical Manufacturers
Association
Syndicate of manufacturers of electrical
components in the USA
NMI Non Maskable Interrupt Interrupt the processor can not reject
NTFS New Techniques File System Secure file system for certain versions of
Windows (NT, 2000, XP)
OPC OLE for Process Control Standardized interface for industrial processes
PATA Parallel ATA
PC Personal computer
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