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Glossary
called dynamic because every participant receives a new
public address that has not been assigned yet each time she
or he dials in to the Internet.
By contrast, dynamic addresses are usually used in local IP
networks because they are easy to handle, and because us-
ing them avoids incorrect IP address entries or unintentional
double assignments.
file system
A file system saves and manages files on a data medium (for
instance, a hard drive or flash drive). The way the files are
stored varies from one file system to the next.
The different operating systems offer different file systems. In
Windows 7, Windows Vista and Windows XP the file systems
FAT32 and NTFS are used most frequently. The file system of a
data storage medium can be changed, for instance from
FAT32 to NTFS.
fixed IP address
Fixed IP addresses are IP addresses (see glossary) which are
permanently assigned to a computer or another device like a
network printer.
Assigning fixed IP addresses makes sense in cases where a
computer is always supposed to be accessible at a certain ad-
dress (for instance, a web server or an e-mail server).
fixed line
A fixed line is a telephone line in the classical landline tele-
phone network. There are two kinds of fixed lines: analog
lines and ISDN lines.
If you have a fixed line and a DSL line, the signals for both
lines use the same cable to access your house or apartment.
For this reason your telephony and Internet provider supplies
you with a DSL splitter (see glossary) that separates the tele-
phone signals and DSL signals from each other.
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