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Abbreviations
C.1 Abbreviations
Abbreviation
CGA
CLK
CMOS
COA
CoL
COM
CP
CPU
CSA
CTS
DP
DRAM
DDRAM
DCD
DMA
DOS
DQS
DSR
DTR
DVD
DVI
ECC
ECP
EGA
ESD
DM
C-2
Term
Color Graphics Adapter
Clock pulse
Complementary Metal Oxide
Semiconductors
Certificate of Authentication
Certificate of License
Communications Port
Communication Processor
Central Processing Unit
Canadian Standards Association
Clear To Send
Distributed I/Os
Dynamic Random Access Memory
Double Data Random Access Memory
Data Carrier Detect
Direct Memory Access
Disc Operating System
Deutsche Gesellschaft zur Zertifizierung
von Qualitätsmanagement mBH
Data Set Ready
Data Terminal Ready
Digital Versatile Disc
Digital Visual Interface
Error Correction Code
Extended capability port
Enhanced Graphics Adapter
Components sensitive to electrostatic
charge
Electronic Manual
Definition
Standard monitor interface
Clock signal for controllers
Complementary metal oxide semiconductors.
Computer chips featuring lower power
consumption compared with common chipsets.
They are, on the other hand, slower than
conventional circuits.
Microsoft Windows Product Key
License authorization
Term for the serial interface
Communication computer
Central unit. Core component of the computer;
responsible for all data processing routines. The
processor receives the relevant data and
programs from work memory.
Canadian standardization organization
Clear to send
Memory chip with high-speed interface
Data carrier signal detection
Direct memory access. Data transfer method for
direct memory access, allowing data exchange
between system components and the RAM
without intervention of the CPU. This is controlled
by the DMA controller, in order to reduce
processor load and to significantly increase
processing performance.
Operating system without GUI
Ready for operation
Data terminal is ready.
Control signal for data transfer.
Digital versatile disk. Standard that describes a
data carrier which is similar to a conventional CD,
but allows read/write operations on both sides of
the DVD; storage capacity up to 8.5 GB of data.
Digital display interface
Error correction code. Method for the correction
of errors in RAM chips; used in high-performance
PCs.
Extended parallel port
PC to monitor interface
Operating Instructions, Edition 09/2005, A5E00432875-01
SIMATIC Rack PC IL 43
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