(1) (
Tera "trillion"
Operations
Per
Second) See
teraOPS and
teraFLOPS.
(2) An early family of operating systems from Digital Equipment that ran on the PDP-6, DECsystem 10 and DECsystem 20. TOPS was later renamed TOPS-10, and TOPS-20 was a new OS based on TENEX, developed at Digital and BBN. TOPS-20 added virtual memory, an advanced feature for the mid-1970s.
(3) (
Transparent
OPerating
System) An early peer-to-peer LAN from Sitka Corporation, Alameda, CA, that used the LocalTalk access method. TOPS connected Apple computers, PCs and Sun workstations. The TOPS Flashcard added LocalTalk to PCs.