McAfee VIRUSSCAN PLUS 2008 User Manual page 174

172 McAfee VirusScan Plus
E
e-mail
(electronic mail) Messages sent and received electronically, across a computer network.
See also Webmail.
e-mail client
A program that you run on your computer to send and receive e-mail (for example,
Microsoft Outlook).
encryption
A process by which data is transformed from text to code, obscuring the information to
make it unreadable by people who do not know how to decrypt it. Encrypted data is also
known as cipher text.
ESS
(Extended Service Set) A set of two or more networks that form a single subnetwork.
event
An action initiated either by the user, a device, or the computer itself which triggers a
response. McAfee records events in its event log.
external hard drive
A hard drive that is stored outside of the computer.
F
file fragments
Remnants of a file scattered throughout a disk. File fragmentation occurs as files are added
or deleted, and can slow your computer's performance.
firewall
A system (hardware, software, or both) designed to prevent unauthorized access to or from
a private network. Firewalls are frequently used to prevent unauthorized Internet users
from accessing private networks connected to the Internet, especially an intranet. All
messages entering or leaving the intranet pass through the firewall, which examines each
message and blocks those that do not meet the specified security criteria.
full archive
To archive a complete set of data based on the file types and locations that you have set up.
See also quick archive.
H
home network
Two or more computers that are connected in a home so that they can share files and
Internet access. See also LAN.