Siemens 620 appendix Cd Rom

Glossary

C

Cache

The cache memory buffers often used data to increase the speed of access. The computer has two cache levels.

Cardbus interface

This interface is compatible with 32-bit Cardbus Cards with PCI performance compliant with the PC Card standard.

CD ROM

Compact Disc Read Only Memory. Removable memory for large amounts of data.

Click

Pressing and immediately releasing the left mouse button; selects objects or triggers commands.

Cold Boot

A startup process that begins with turning on the computer’s power. Typically, a cold boot involves some basic hardware checking by the system, after which the operating system is loaded from disk into memory.

COM1 Port

Serial V.24/modem-PLC interface. This interface is suitable for asynchronous data transmission. It can also be used to connect printers with a serial interface.

COM2 Port

Serial RS-232 interface which can be used to connect a mouse or a printer.

Configuration Files

These are files containing data which define the configuration after booting. Examples of such files are CONFIG.SYS, AUTOEXEC.BAT and the registry.

Configuration Software

The configuration software updates the device configuration when new modules are installed. This is done either by copying the configuration files supplied with the module or by manual configuration using the configuration utility.

Glossary-4	SIMATIC Box PC 620 Manual
	A5E00131465-01