[COFF] ARPAnet now 4 nodes

[Rudi Blom]

I like a challenge although it wasn't really much of it. A simple arpa
imp in yahoo spilled the beans :-)

"The Interface Message Processor (IMP) was the packet switching node
used to interconnect participant networks to the ARPANET from the late
1960s to 1989. It was the first generation of gateways, which are
known today as routers.[1][2][3] An IMP was a ruggedized Honeywell
DDP-516 minicomputer with special-purpose interfaces and software.[4]
In later years the IMPs were made from the non-ruggedized Honeywell
316 which could handle two-thirds of the communication traffic at
approximately one-half the cost.[5] An IMP requires the connection to
a host computer via a special bit-serial interface, defined in BBN
Report 1822. The IMP software and the ARPA network communications
protocol running on the IMPs was discussed in RFC 1, the first of a
series of standardization documents published by the Internet
Engineering Task Force (IETF)."
https://en.wikipedia.org/wiki/Interface_Message_Processor

Cheers,
uncle rubl

From: Dave Horsfall <dave at horsfall.org>
To: Computer Old Farts Followers <coff at tuhs.org>
Cc:
Bcc:
Date: Wed, 9 Dec 2020 13:41:11 +1100 (EST)
Subject: Re: [COFF] ARPAnet now 4 nodes
On Sat, 5 Dec 2020, Noel Chiappa wrote:

> The ARPAnet reached four nodes on this day in 1969 .. the nodes were > UCSB, UCLA, SRI, and Utah.

Yeah; see the first map here:

 http://www.chiappa.net/~jnc/tech/arpageo.html

Yep; I know that first map well :-)  For the newbies here, the ARPAnet
was the predecessor of the Internet (no, it didn't spring from the
brow of Zeus, nor Billy Gates), and what we now call "routers" were
then IMPs (look it up).

Missing maps gratefully received!

Indeed; history needs to be kept alive, lest it die.

-- Dave