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GL-1

This glossary defines some of the abbreviations, acronyms, and key terms used in this 
document.

An Ethernet implementation in which the physical medium is a 
doubly shielded, 50-ohm coaxial cable capable of carrying data at 10 
Mbps for a length of 500 meters (also referred to as thicknet). Also 
known as thick Ethernet.

An Ethernet implementation in which the physical medium is a 
single-shielded, 50-ohm RG58A/U coaxial cable capable of 
carrying data at 10 Mbps for a length of 185 meters (also referred to 
as AUI or thinnet). Also known as thin Ethernet.

An Ethernet implementation in which the physical medium is an 
unshielded twisted pair (UTP) of wires capable of carrying data at 
10 Mbps for a maximum distance of 185 meters. Also known as 
twisted-pair Ethernet.

An Ethernet implementation in which the physical medium is an 
unshielded twisted pair (UTP) of wires capable of carrying data at 
100 Mbps for a maximum distance of 100 meters. Also known as 
fast Ethernet.

Asynchronous Communications Interface Adapter

Advanced Interactive eXecutive (IBM version of UNIX)

The main overall design in which each individual hardware 
component of the computer system is interrelated. The most 
common uses of this term are 8-bit, 16-bit, or 32-bit architectural 
design systems.

American Standard Code for Information Interchange. This is a 7-
bit code used to encode alphanumeric information. In the IBM-
compatible world, this is expanded to 8-bits to encode a total of 256 
alphanumeric and control characters.

Application-Specific Integrated Circuit