10 Oct
2002
10 Oct
'02
11:48 a.m.
Yeah, even my wife enjoyed it!
Sadly, we
don't get it in Europe... *sigh* Anyone got a taped
copy?
So, the IMPs they built would be the first network
interface,
right? The precurser to the present-day NIC.
Well, no.. IMP's connected a
local(-ish) network to the remote
(-ish) network, usually over a slow(-ish ;-) WAN link like a
56K switched circuit. You could see them as the first series
of protocol-converting gateways, though.
Werent they built by BBN, and based on PDP-11(/23's) with the
Fuzzball software load image?
--f
10 Oct
10 Oct
12:03 p.m.
On Thu, Oct 10, 2002 at 06:49:20PM +0200, Fred N. van Kempen wrote:
Werent they built by BBN, and based on
PDP-11(/23's) with the
Fuzzball software load image?
No, those units were the Fuzzballs. (I think the hardware name
inspired the softtware.) The IMPs were Honeywell minicomputers --
DDP-516s according to this site:
http://www.ulm.ccc.de/chaos-seminar/geschichte-internet/tsld004.htm
(I searched for IMP ~ Honeywell ~ Internet and that was the first
useful result.) You are right about BBN. There's something else
called a TIP (Terminal Interface Processor) but I don't know the
difference. It lent its name to the "tip" command in UNIX.
-- Derek
12 Oct
12 Oct
10:26 p.m.
No, those units were the Fuzzballs. (I think the
hardware name
inspired the softtware.)
Amonst my junk is a PDP-11/23 with an MS connector on the back prominently
labeled "IMP". Inside is a special 2 board cardset that acts as the
network interface - a 2901 based thing, probably more powerful than the
PDP-11.
I would like to find out more information on this cardset - it is not
from DEC and is probably a low run custom job by some
long gone shop.
Sorry, that is just about all I know about it.
One of the more interesting things about the PDP-11/23 is that it was
never used. The little bags of parts and things are still wrapped onto the
chassis, as they were the day they left the factory.
William Donzelli
aw288(a)osfn.org
10 Oct
10 Oct
12:27 p.m.
No, the first IMP's were build on Interdata machines I think, long long
before Qbus.
Fred N. van Kempen wrote:
Yeah, even my
wife enjoyed it!
Sadly, we don't get it in Europe... *sigh* Anyone got a taped
copy?
So, the IMPs they built would be the first network
interface,
right? The precurser to the present-day NIC.
Well, no.. IMP's connected a local(-ish) network to the remote
(-ish) network, usually over a slow(-ish ;-) WAN link like a
56K switched circuit. You could see them as the first series
of protocol-converting gateways, though.
Werent they built by BBN, and based on PDP-11(/23's) with the
Fuzzball software load image?
--f
12:54 p.m.
On 10/10/02, Fred N. van Kempen scribbled:
Yeah, built by BBN. They didn't really say in the show what they
based on, though...
--
--- David A. Woyciesjes
--- C & IS Support Specialist
--- Yale University Press
--- (203) 432-0953
--- ICQ # - 905818
Yeah, even my
wife enjoyed it!
Sadly, we don't get it in Europe... *sigh* Anyone got a
taped
copy?
So, the IMPs they built would be the first
network interface,
right? The precurser to the present-day NIC.
Well, no.. IMP's connected a
local(-ish) network to the remote
(-ish) network, usually over a slow(-ish ;-) WAN link like a
56K switched circuit. You could see them as the first series
of protocol-converting gateways, though.
Werent they built by BBN, and based on PDP-11(/23's) with the
Fuzzball software load image?
8120
days inactive
8122
days old
4 comments
5 participants
participants (5)
-
aw288＠osfn.org -
bshannon＠tiac.net -
daw＠yalepress3.unipress.yale.edu -
dpeschel＠eskimo.com -
Fred.van.Kempen＠microwalt.nl