10 Apr
1998
10 Apr
'98
9:40 a.m.
< 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.
Eithernet was a colaboration of Digital Eguipment corp, Intel and Xerox
and was in the '70s called DIX eithernet.
Allison
11 Apr
11 Apr
12:59 p.m.
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.
--
mor(a)crl.com
http://www.crl.com/~mor/
2:11 p.m.
On Sat, 11 Apr 1998, Greg Troutman wrote:
No, Arcnet is a star topology, polling system, pretty
similar to
token-ring.
Actually, AFAIK, Arcnet can be star, bus, or simply point-to-point.
Adam
----------
Adam Fritzler
afritz(a)iname.com
http://www.afritz.base.org
----------
2:34 p.m.
Greg Troutman wrote:
No, Arcnet is a star topology, polling system, pretty
similar to
token-ring.
I think you will find that Arcnet was not just star topology. Most of the
machines I set up were just daisy chained with terminators on both ends. I
still have an Arcnet hub but found that daisy chaining was a lot simpler.
3:30 p.m.
Marvin wrote:
Greg Troutman wrote:
Yes, there were several topologies that could be built. All my
experience had been with the SMC line of hubs and I forgot about the
others.
--
mor(a)crl.com
http://www.crl.com/~mor/
No, Arcnet is a star topology, polling system,
pretty similar to
token-ring.
I think you will find that Arcnet was not just star topology. Most of the
machines I set up were just daisy chained with terminators on both ends. I
still have an Arcnet hub but found that daisy chaining was a lot simpler. 
4:59 p.m.
On Sat, 11 Apr 1998, Greg Troutman wrote:
Allison J Parent wrote:
The original was a star topology, but later on there was also a bus
topology.
- don
< 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. --
mor(a)crl.com
http://www.crl.com/~mor/
donm(a)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
5:26 p.m.
New subject: BYTE Magazine Master Index?
Thanks to a nice professor who cleaned out his office, I've filled out my
collection of BYTE mags pretty well. I was wondering if anybody knew of a
complete (online?) index of all the BYTE mags. Also, I've been thinking
about getting the BYTE archive CD-ROM (which, unfortunately, only goes
back to 1990). I noticed that BYTE sells this on a subscription basis --
does anybody have an out-of-date CD-ROM they'd like to get rid of?
Thanks,
Doug
6:51 p.m.
New subject: BYTE Magazine Master Index?
Hmm, I accidentally stumbled upon a partial index at:
http://unix.hensa.ac.uk/ftp/mirrors/uunet/published/byte/indexes/
It contains info about articles published from 1986 - 1990. Byte's web
site has 1994 on.
This was the only hit I got when looking for information about a portable
called the "Agilis System". Does anybody know if this system was actually
produced -- I can't find anything about it beyond the BYTE article (Aug
1989).
-- Doug
9704
days inactive
9706
days old
7 comments
6 participants
participants (6)
-
afritz＠iname.com -
allisonp＠world.std.com -
donm＠cts.com -
marvin＠rain.org -
mor＠crl.com -
yowza＠yowza.com