work) The first local area network (LAN) introduced in 1968 by Datapoint Corporation. It connected up to 255 nodes in a star topology at 2.5 Mbits/sec over twisted pair or coax. A 20 Mbits/sec version was introduced in 1989. Although not as popular as Ethernet and Token Ring, many ARCNET networks were sold due to their lower-cost adapters. Gateways could connect ARCNET to mini and mainframe networks.
ARCNET is a data link protocol and functioned at the data link and physical levels of the OSI model (1 and 2). It used the token passing access method. See data link protocol