Symantec NORTON INTERNET SECURITY 2004, User Manual

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Glossary 216
JavaScript A scripting language used to enhance Web pages.
Most sites use JavaScript to add simple interactivity
to pages, but some use it to open pop-up ads and reset
visitors' homepages.
macro A simple software program that can be started by a
specific keystroke or a series of keystrokes. Macros
can be used to automate repetitive tasks.
NAT (network
address translation) A method of mapping private IP addresses to a single
public IP address. NAT allows multiple computers to
share a single public IP address. Most DSL and cable
routers support NAT.
network address The portion of an IP address that is shared by all
computers on a network or subnet. For example,
10.0.1.1 and 10.0.1.8 are part of the network address
10.0.1.0.
NTFS (NTFS file
system) A system table (used primarily by Windows 2000/
XP) that organizes the exact location of all the files on
the hard drive.
packet
The basic unit of data on the Internet. Along with the
data, each packet includes a header that describes the
packet's destination and how the data should be
processed.
partition A portion of a disk that is prepared and set aside by a
special disk utility to function as a separate disk.
POP3 (Post Office
Protocol version 3) One of the two most popular protocols for receiving
email. POP3 requires that you download messages to
read them.
port A connection between two computers. TCP/IP and
UDP use ports to indicate the type of server program
that should handle a connection. Each port is
identified by a number.