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JPEG - A standard image format, used widely for photographs. Also known as JPG.
LAN - Local Area Network. A data communications network which is geographically limited
(typically to a 1 km radius), allowing easy interconnection of terminals, microprocessors and
computers within adjacent buildings. Ethernet and FDDI are examples of standard LANs.
PING - A protocol that sends a message to another computer and waits for acknowledgment,
often used to check if another computer on a network is reachable.
PPP - Point to Point Protocol. A method allowing one computer to connect to another, usually
via a modem over a phone line.
Protocol - A set of formal rules describing how to transmit data, especially across a network.
Low-level protocols define the electrical and physical standards to be observed, bit- and byte-
ordering and the transmission and error detection and correction of the bit stream. High-level
protocols deal with the data formatting, including the syntax of messages, the terminal to
computer dialogue, character sets, sequencing of messages, etc.
SMTP - Simple Mail Transfer Protocol.
TCP/IP - Transmission Control Protocol/Internet Protocol. The wide-area-networking protocol
that makes the Internet work. TCP/IP is used on many networks, including the Internet. TCP
keeps track of the individual packets of information and IP contains the rules for how the
packets are actually sent and received.
URL - Uniform Resource Locator. An "address" on the network.
WAN - Wide Area Network. A communications network that uses such devices as telephone
lines, satellite dishes or radio waves to span a larger geographic area than can be covered by a
LAN.
Wizard - A program designed specifically to guide the user through a procedure. Typically used
for installation and configuration. InstallShield Wizard is required to download ActiveX manually.