Anton Aylward wrote:
Unix V5 (in the 70s), as well as V6 and V7 into the early 80s, didn't have networking capability. I first met IP networking on the BSD2.8 versions on the 11, though there was some point-to-point over serial links and of course UUCP, but not what we think of today as networking. Also the books are wrong about IP networking coming in BSD4.2, it came in some versions of BSD4.1, certainly stable and useful in BSD4.1c because I loaded that on one VAX/780 while a colleague loaded it on the _other_ and we set up our first real IP network! That was "hcrvax",no longer just a UUCP node!
The first computer network I ever worked with, back in 1978, was on a Collins 8500C system, which was part of the Air Canada reservation system. The Collins system was the communications front end for a Univac system, connecting it to terminals around the world. This Collins network did not use packets, in the manner of ethernet. Instead, it used time slots, into which a device would insert data, one byte at at a time, into a triaxial cable loop, running at 8 Mb/s. Each device was assigned it's own time slot for transmitting and it could also listen on any time slot to receive data. An earlier version of this type of network goes back to the mid '60s, on earlier Collins models. This older network ran at 2 Mb/s over coaxial cable. The Air Canada system used the 8 Mb "TDX" loop to connect high speed devices, such as tape & disk drives to the CPUs. The interface to the Univac system was also on the high speed loop. The 2 Mb "TDM" loop was used for low speed devices, such as a card reader and also an array of several PDP-11s, which contained serial I/O boards (based on a Motorola 6800 CPU) which connected, in turn, to racks of modems for communications around the world. -- Use OpenOffice.org <http://www.openoffice.org> -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org