Glossary
Glossary-12
SIMATIC Box PC 620 Manual
A5E00131465-03
Module
Modules are boards (printed circuit boards) which can be plugged into a
programmable logic controller or programming device. They are available, for
instance, as central controller modules, interface modules, or as bulk memory
modules.
Monitor
The device on which images generated by the computer’s video adapter are
displayed.
Mother Board
The mother board is the core of the programming device. From here data are
processed and stored, interfaces and device I/Os are controlled and managed.
Mouse
The mouse is a pointing device with which the user inputs coordinates (x,y). By
moving the mouse, the mouse pointer can be moved at will around the screen. By
pressing the left mouse button, the position is marked. The other mouse keys may
have different assignments according to the application. With the mouse, objects
can be selected, menus processed, and functions started.
Mouse Pointer
The mouse pointer is moved across the worktop (screen) by means of the mouse.
The mouse pointer selects, for example, objects which are to be processed.
MS-DOS
The single Microsoft-Disk-Operating-System is one of the standard OS for PCs.
Multimedia
The combination of sound, graphics, animation, and video. In the world of
computers, multimedia is a subset of hypermedia, which combines the
aforementioned elements with hypertext.
N
Network
Link between programming devices and programmable controllers by means of
interface modules, physical cables, and the corresponding software to allow data
exchange between the devices.
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