(1) See
EOS memory.
(2) (
Ethernet
Over
Sonet/SDH) Transporting Ethernet frames within Sonet/SDH frames. EOS uses "virtual concatenation" to bond SONET channels together to accommodate Ethernet speeds as well as lower-speed channels (DS1, DS2, etc.) that travel as "virtual tributaries" in SONET networks and "virtual containers" in SDH networks. See
SONET and
VT.
(3) (
ETA
OS) An early supercomputer operating system from ETA Systems, a spin-off of Control Data. In the 1980s, EOS was compatible with Control Data's VSOS operating system.
(4) (E/OS) (
Emulator
OS) A Linux-based virtual machine that combined the QEMU and Wine emulators along with the XFree86 version of the X Window windowing system. E/OS originated in 1995 as an open source DOS virtual machine. Although it was expanded in 2000 as a virtual platform for Windows, DOS, Mac, OS/2, BeOS and Linux applications, it was abandoned in 2008.