SIMATIC IPC847E
Operating Instructions, 10/2018, A5E43920357-AA
205
List of abbreviations
D
D.1
Abbreviations
Abbrevia-
tion
Term
Meaning
AC
Alternating current
Alternating current
AHCI
Advanced Host Controller Interface
Standardized controller interface for
SATA devices. This is supported in Mi-
crosoft Windows XP as of SP1 and IAA
driver.
APIC
Advanced Programmable Interrupt Controller Extended programmable interrupt con-
troller
AWG
American Wire Gauge
US standard for the cable diameter
CE
Communauté Européenne (CE symbol)
The product is in conformance with all
applicable EC directives
CLK
Clock pulse
Clock signal for controllers
CMOS
Complementary Metal Oxide Semiconduc-
tors
Complementary metal oxide semicon-
ductors
COA
Certificate of authentication
Microsoft Windows Product Key
COM
Communications Port
Term for the serial interface
CP
Communication Processor
Communication computer
CPU
Central Processing Unit
CPU
CSA
Canadian Standards Association
Canadian organization for tests and
certifications according to own or bi-
national standards (with UL / USA)
standards
DC
Direct Current
DC current
DRAM
Dynamic Random Access Memory
DMA
Direct Memory Access
Direct memory access
DOS
Disk Operating System
Operating system without GUI
DPP
DisplayPort
New powerful digital monitor port
DQS
Deutsche Gesellschaft zur Zertifizierung von
Qualitätsmanagement mBH
DVI / DVI-
D
Digital Visual Interface
Digital display interface without VGA
signals
DVI-I
Digital Visual Interface
Digital display interface with digital and
VGA signals
ECP
Extended capability port
Extended parallel port
EFI
Extensible Firmware Interface
ESD
Components sensitive to electrostatic charge
EN
European standard
HDD
Hard Disk Drive
Hard disk drive