Metcalfe, Robert Melancton (1946–)

Credited as the inventor of the local area network (LAN) con-

cept and the enabling technology. Metcalfe and his associates at the Xerox Palo Alto Research Center (Xerox PARC) developed the first LAN, which originally was known as the Altos Aloha Network as it connected Altos computers through a network based on the AlohaNet packet radio system technology developed at the University of Hawaii.The network later (1973) became known as Ethernet, from luminiferous ether, the omnipresent passive medium once conjectured to pervade all space and to support the propagation of electromagnetic energy, even through a vacuum. See also ether, Ethernet, LAN, Metcalfe’s law, and Xerox PARC.

• 10 Gigabit Ethernet (10GbE)
• 10 Gigabit Ethernet (IEEE 802.3ae) Media Specifications
• 10GigE (10 Gbps Ethernet)
• 10XXX
• 11
• 12
• 128-QAM
• 13
• 1394
• 1/3 FEC
• 14
• 15
• 1.5-way paging
• 16
• 16-QAM
• 16-QPSK
• 18
• 1:8 Splitter
• 1A
• 1A1
• 1A2
• 1Base5 (1 Mbps; Baseband; 500 meters)
• 1B+D
• 1. Domain Name System. The naming convention that divides the Internet into logical domains identified in Internet Protocol version 4 (IPv4) as a 32-bit portion of the total address.The standard convention is user@organization.domain, where user is the name of the end user, organization is the name of the enterprise or other organization owning or sponsoring the address, and domain is the type of entity owning or sponsoring the address.The administration of the DNS is the responsibility of Internet Corporation for Assigned Names and Numbers (ICANN). See also domain, ICANN, Internet, and IPv4. 2.
• 1. In storage, irrelevant material, usually zero (0) bits, added to a data block in order to fill it to a minimum size, to force certain fields of control data or user data into certain positions or sizes, or to prevent the user data from duplicating a bit pattern that has a specific control meaning. See also block. 2.