ETHER definition
<language> A concurrent object-oriented language?
(1997-03-18)
Nearby terms:
ETB « ETC « e-text « ETHER » EtherGate » Ethernet » Ethernet address
EtherGate definition
Multi-protocol Ethernet gateway made by LRT.
See Computer Systems, October 1985.
Nearby terms:
ETC « e-text « ETHER « EtherGate » Ethernet » Ethernet address » Ethernet meltdown
Ethernet definition
<networking> A local area network first described by
Metcalfe & Boggs of Xerox PARC in 1976. Specified by DEC,
Intel and XEROX (DIX) as IEEE 802.3 and now recognised
as the industry standard.
Data is broken into packets and each one is transmitted
using the CSMA/CD algorithm until it arrives at the
destination without colliding with any other packet. The
first contention slot after a transmission is reserved for
an acknowledge packet. A node is either transmitting or
receiving at any instant. The bandwidth is about 10 Mbit/s.
Disk-Ethernet-Disk transfer rate with TCP/IP is typically 30
kilobyte per second.
Version 2 specifies that collision detect of the transceiver
must be activated during the inter-packet gap and that when
transmission finishes, the differential transmit lines are
driven to 0V (half step). It also specifies some network
management functions such as reporting collisions, retries
and deferrals.
Ethernet cables are classified as "XbaseY", e.g. 10base5,
where X is the data rate in Mbps, "base" means "baseband"
(as opposed to radio frequency) and Y is the category of
cabling. The original cable was 10base5 ("full spec"),
others are 10base2 ("thinnet") and 10baseT ("twisted
pair") which is now (1998) very common. 100baseT ("Fast
Ethernet") is also increasingly common.
Usenet newsgroup: comp.dcom.lans.ethernet.
http://wwwhost.ots.utexas.edu/ethernet/ethernet-home.html.
(1997-04-16)
Nearby terms:
e-text « ETHER « EtherGate « Ethernet » Ethernet address » Ethernet meltdown » EtherTalk
Ethernet address definition
<networking> (Or "MAC address") The physical address
identifying an individual Ethernet controller board. An
Ethernet addess is a 48-bit number aabbccddeeff where a-f are
hexadecimal digits. The first 24 bits, aabbcc, identify the
manufacturer of the controller. The Ethernet address is
hard-wired on some controllers, stored in a ROM on some, and
others allow it to be changed from software. It is usually
written as six hexadecimal numbers, e.g. 08:00:20:03:72:DC.
See also ARP, Internet address.
(1996-02-21)
Nearby terms:
ETHER « EtherGate « Ethernet « Ethernet address » Ethernet meltdown » EtherTalk » ethics
Ethernet meltdown definition
A network meltdown on Ethernet.
(1994-11-29)
Nearby terms:
EtherGate « Ethernet « Ethernet address « Ethernet meltdown » EtherTalk » ethics » ETL
EtherTalk definition
<networking> An Apple Computer network standard used to
extend an AppleTalk network across an Ethernet network.
Compare LocalTalk.
(1994-11-29)
Nearby terms:
Ethernet « Ethernet address « Ethernet meltdown « EtherTalk » ethics » ETL » ETM
ethics definition
computer ethics
Nearby terms:
Ethernet address « Ethernet meltdown « EtherTalk « ethics » ETL » ETM » ETRN
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