Summary

DescriptionDataConcentrator-PDP8-UMich-DaveMills.jpg	English: DEC PDP-8 based Data Concentrator developed by the CONCOMP project at the University of Michigan to connect terminals to the I/O channels on an IBM S/360-67 mainframe computer, circa 1971.
Date	1971
Source	Dave Mills' Web site: http://www.cis.udel.edu/~mills/gallery/gallery7.html
Author	Dave Mills
Permission (Reusing this file)	This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page. The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2010071510045053. If you have questions about the archived correspondence, please use the VRT noticeboard. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2010071510045053 Find other files from the same ticket:

From left to right: Teletype Model 35 with paper tape reader/punch; PDP8, with 8192 words of 12-bit core memory and power supplies; paper tape punch (top), control panels for two IBM multiplexor channel interfaces (middle), paper tape reader (bottom); two custom IBM multiplexor channel interfaces and multiplexor gear for 24 asynchronous serial interfaces for dial-in modems; multiplexor gear for four synchronous serial interfaces for dial-in modems. DEC used a teddy bear similar to the one perched above the rack in an ad campaign to emphasize how cute their products were. UMich placed an order for one Ursus Theodorus, part number and price to be determined. The bear in the photo was delivered complete with a DEC part number and identification tag.

Licensing

I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.