RLV11/RL02 ->11/73?

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Sun Apr 4 11:35:55 1999

>> Some options for UNIBUS have a U as the second or third of
>> the option name... dhU, dU. But generally, the UNIBUS options
>> are two-character names, DL, DH, DZ, VT, etc... As always, there
>> are exceptions, like DUP, DMC, DMR...

>Is there a guide somewhere that explains what all the codes translate to?

Ron Copley's venerable "Field Guide to Q-bus and Unibus Modules"
contains, in most cases, the option name as well as the module number
in the description. For example:

M8053-AA DMV11 Q Microprogrammed controller (needs one of M5930-
                            M5931) (Also M8053-AB, -AC, -ETC)

Generally, a "D" at the front means it's some sort of communications
option, a "M" means memory, a "K" means CPU, "R" means disk controller,
a "T" means a tape controller, an "A" means an A/D or D/A converter,
a "V" means some sort of video-related hardware, and "L" means either
a line printer or a linear module. I'm sure someone will come up
with many options that don't quite fit into this scheme :-).

The field guide claims at its top:

*This list may always be found on sunsite.unc.edu, in the following
*directory:
*/pub/academic/computer-science/history/pdp-11/hardware/field-guide.txt
*(Tonnes of stuff here... thanks, Tim!)

-- 
 Tim Shoppa                        Email: shoppa_at_trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
 7328 Bradley Blvd		   Voice: 301-767-5917
 Bethesda, MD, USA 20817           Fax:   301-767-5927
Received on Sun Apr 04 1999 - 11:35:55 BST

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