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Siemens Simatic PG 740 - Page 110

Siemens Simatic PG 740
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Glossary-2
Programming Device PG 740
C79000-G7076-C742-01
Access to the programs and data of a programming device can be protected
by passwords.
An application is a program which builds directly on, for example, the
operating system. Applications on your programming device are
MS-DOS/Windows, the STEP 5 Basic package, GRAPH 5 etc.
With an ASCII editor you can process (that is, edit) text files which are
stored in ASCII code (American Standard Code of Information Interchange).
The base memory is a part of the main memory. It is 640 KB for all
programming devices. The size is entered in the SETUP menu under the
entry “Base Memory” and is not changed even if the memory is extended.
The speed (in bits per second) with which information is transmitted over a
data link.
BASIC Input Output System
A diskette which includes a boot sector, enabling it to load the operating
system.
A loading operation which transfers the operating system to the main
memory.
Fast intermediate memory.
Pressing and immediately releasing the left mouse button; this selects objects
or trigger commands.
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.
A
Access Protection
Application
ASCII Editor
B
Base Memory
Bps
BIOS
Boot Diskette
Booting
C
Cache
Click
COM1 Port
Glossary

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