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Drivers
These are programs which are part of the operating system. They adapt the data
from user programs to the specific formats required by the I/O devices such as
hard disk, printers and monitors.
Drop-Down Menu
In graphics-supported programs, a menu line is positioned on the top edge of the
screen. The menu titles contained in this line can be set either as drop-down or
pull-down menus. Drop-down menus "roll" down as soon as the mouse pointer
passes over a menu title. Pull-down menus only "roll" down when the menu title is
clicked on. Different functions can then be called from these menus by moving the
mouse and clicking on an item in a menu.
E
EPROM/EEPROM Submodules
These are plug-in submodules with EPROM/EEPROM chips. S5 user programs
can be stored on them. These programmed submodules are then plugged in
specially designed receptacles in the programmable controller.
Extended Memory
A memory extension can be installed in a programming device to increase the size
of the memory.
Ethernet
Local network (bus structure) for text and data communication with a data
transmission rate of 10 Mbps.
F
File
A file is a collection of data under one name.
Formatting
Formatting divides the memory area on a magnetic data medium into tracks and
sectors. Formatting deletes all the data on a data medium. Every data medium
must be formatted before it is used for the first time.
SIMATIC Box PC 620 Manual
C79000-G7076-C639-04
Glossary
Glossary-5

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