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email (electronic mail)

A method of exchanging messages and files with other people via computer networks. A popular protocol for sending email is SMTP (Simple Mail Transfer Protocol). Popular protocols for receiving email are POP3 (Post Office Protocol 3) and IMAP4 (Internet Message Access Protocol 4). Web-based email services use HTTP (HyperText Transfer Protocol) for sending and receiving email.

executable file

A file containing program code that can be launched. Generally includes any file that is a program, extension, or a system file.

file type

The four-character code, stored along with a creator code in each file, that identifies its type. Programs use this code to determine if a file is in a format that can be read by the program.

hard disk

A device that reads data from, and writes data onto, a disk.

icon

A graphic symbol used to represent a file, folder, disk, or other entity.

infected file

A file that contains a virus.

Internet

A decentralized global network connecting millions of computers.

known virus

Any virus that Norton AntiVirus can detect and identify by name.

local

A term that refers to your computer, as opposed to a remote computer.

network

A set of computers and associated hardware connected together in a work group for the purpose of sharing information and hardware among users.

operating system

A program that ties the capabilities of computer hardware and software to input/output devices such as disks, keyboards, and mice.

password

A character sequence entered by users to verify their identities to a network or program. The most secure passwords are difficult to guess or find in a dictionary, and contain a combination of capital letters, lowercase letters, numbers, and symbols.

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