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Boot Diskette
A diskette which includes a boot sector, enabling it to load the operating system
from the diskette.
Booting
A loading operation which transfers the operating system to the main memory.
Bps
The speed (in bits per second) with which information is transmitted over a data
link.
C
Cache
Fast intermediate memory between the work memory and the CPU.
Cardbus interface
This interface is compatible with 32-bit Cardbus Cards with PCI performance com-
pliant with the PC Card standard.
CD ROM
(Compact Disc – Read Only Memory) Removable memory for large amounts of
data.
Click
Pressing and immediately releasing the left mouse button; this selects objects or
trigger commands.
COM Port
The COM1 port is a serial V.24/modem interface. This interface is suitable for
asynchronous data transmission. It can also be used to connect printers with a
serial interface.
Configuration Files
These are files which define the configuration after booting. Examples of such files
are CONFIG.SYS and AUTOEXEC.BAT and registry files.
SIMATIC Box PC 840 Manual
A5E00085984-04
Glossary
Glossary-3

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