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=OG=ahab
08-28-2009, 05:07 PM
I found this online. These were the first computers I ever worked on.

Behold the 3B20D:

"The 3B20 came in two variations -- 3B20S (simplex) and 3B20D (duplex hardware). The 3B20D is used for a variety of purposes, including SSP, SS7, billing systems, the Administrative Module of the 5ESS, an adjunct to the 1AESS and 4ESS. The multiple cabinets of the 3B20D were replaced by a 2-shelf 3B21D software compatible version. In some later systems, including the 5ESS VCDX, the 3B20D software runs on a standard Sun Microsystems computer using a custom software emulator of the 3B20D hardware. Ironically, the software runs faster in emulation mode than on the native hardware because the 3B20D is only a 1 MIP machine."

http://img530.imageshack.us/img530/8804/att3b20d1.jpg

http://img530.imageshack.us/img530/1425/att3b20d2.jpg

The VAX11:

http://img530.imageshack.us/img530/7444/vax.gif

http://img530.imageshack.us/img530/6480/netbsdvax11780.jpg

I also worked on the Amdahl 5890 running UTS (Unix for a mainframe) but can only find one tiny picture.

ahab

=OG=Cowboy
08-28-2009, 07:34 PM
I met MIP once. He is a nice guy!!

Enigma
08-28-2009, 09:32 PM
I thought this was the first one you worked on Ahab

http://img5.imageshack.us/img5/3540/fig16b.jpg (http://img5.imageshack.us/i/fig16b.jpg/)

Shades
08-30-2009, 04:44 AM
Shoot Ahab i thought that was a walk in freezer for a second :prrr: