On Sat, 11 Apr 1998, Greg Troutman wrote:
> Allison J Parent wrote:
> >
> > < I seem to remember early Ethernet interface VAX quad cards
> > < being around 1.5Mbps... not sure if it was think ether, vampire
> > < tap stuff... This would have been before ethernet was turned
> > < into a 'standard.' One guy I know has one of these hanging
> > < from his wall along with some physical core for a PDP 11/44. I
> > < was too young to have used to implemented this stuff, so I
> > < can't claim to have actually _used_ such hardware.
> >
> > 802.. eithernet was always 10mbit/s. The 1.5mhz stuff was arcnet. They
> > are similar in that they are both bus topology using CSMA/CD arbitration.
>
> No, Arcnet is a star topology, polling system, pretty similar to
> token-ring.
The original was a star topology, but later on there was also a bus
topology.
- don
> --
> mor_at_crl.com
> http://www.crl.com/~mor/
>
donm_at_cts.com
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Don Maslin - Keeper of the Dina-SIG CP/M System Disk Archives
Chairman, Dina-SIG of the San Diego Computer Society
Clinging tenaciously to the trailing edge of technology.
Sysop - Elephant's Graveyard (CP/M) - 619-454-8412
*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*
see old system support at
http://www.psyber.com/~tcj
visit the "Unofficial" CP/M Weg site at
http://cdl.uta.edu/cpm
with Mirror at
http://www.mathcs.emory.edu/~cfs/cpm
Received on Sat Apr 11 1998 - 23:59:09 BST