Appendix
A.3 Glossary Definitions CU
SIMATIC Panel PC 577
Operating Instructions, Release 04/2006, A5E00798484-01
A-11
Motherboard
The motherboard, as the central part of the computer, processes and stores data, controls
and manages interfaces and peripheral devices.
Main memory
The main memory represents the complete RAM area on a PC/PG.
Hub
A term from network technology. A device which joins communication lines at a central
location and provides a common connection to all devices on the network.
Image
An image is, for example, an image of hard disk partitions. Save the image in a file in order
to restore it as needed.
Interface
See Interface.
Cold restart
A start sequence, starting when the computer is switched on. During a cold restart, the
operating system carries out basic hardware checks and then boots.
LPT interface
The LPT interface is a parallel centronics interface to which a printer is connected, for
example.
Plug and play
Through plug and play, the computer configures itself automatically to be able to
communicate with peripheral devices, e.g. screens, modems and printers. User connects a
peripheral device: plug. Afterwards, the peripheral device can be used immediately. play,
without having to configure the operating system manually. The plug and play PC requires
both a BIOS that supports plug and play and a corresponding expansion card.
Recovery CD/DVD
Contains tools for installing drivers in hard disks and Windows operating systems.
