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GLOSSARY 3
EIA/TIA
Electronics Industries Association/Telecommunications
Industries Association. The organization that develops wiring
standards for the telecommunications industry. The EIA/TIA
568 specification applies to all unshielded twisted-pair
wiring schemes that work with Ethernet, Token Ring, ISDN
and other networks.
EISA
Extended Industry Standard Architecture. The EISA 32-bit
extended AT personal computer bus architecture is
downward compatible with the 16-bit ISA architecture.
EMM386
Expanded Memory Manager. A dual-purpose memory
manager that comes with MS-DOS. It provides access to the
upper memory area, which enables you to free conventional
memory by running device drivers in upper memory.
EMM386 also uses extended memory to simulate expanded
memory. Refer to Microsoft documentation for additional
information.
Ethernet
A local area network standard defining a physical medium
and its method of placing data, or packet signaling, on a
cable. Access to the cable is based on CSMA/CD (carrier
sense multiple access with collision detection).
ISA
Industry Standard Architecture. A 16-bit extension of the
original IBM
â
PC bus architecture. The IBM Personal
Computer AT
â
bus.
Loopback
A type of diagnostic test in which the transmitted signal is
returned to the sending device after passing through all, or a
portion of, a data communications link or network. A loopback
test permits the comparison of a returned signal with the
transmitted signal.