Siemens SIMATIC PG 760 PII, Руководство пользователя

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Glossary-4
PG 760 PII Programming Device
C79000-G7076-C766-01
In graphics-supported programs, a menu line is positioned at 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.
A memory extension can be installed in a programming device to increase
the size of the memory.
A file is a collection of data under one name.
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.
Function keys can be divided into two different types; the normal function
keys which are assigned a particular function of the computer (for example,
delete key), and programmable function keys (softkeys).
The output of the complete contents of the screen on a printer is called a hard
copy.
Hard disk drives (Winchester drives) are a form of magnetic disk memory
where the magnetic disks are permanently built into the drive.
Drop-Down Menu
E
Extended Memory
F
File
Formatting
Function Keys
H
Hard Copy
Hard Disk Drive
Glossary