looking for documentation for 1963 minuteman missile computer

Most of the older AF missile equipment had an A/D and D/A convertor, usually sent "discretes" out to the servos, servopositioners, accelerometers, etc. -> -----Original Message----- -> From: owner-classiccmp(a)classiccmp.org -> [mailto:owner-classiccmp@classiccmp.org]On Behalf Of Carlos Murillo -> Sent: Monday, October 15, 2001 9:14 PM -> To: classiccmp(a)classiccmp.org -> Subject: Re: looking for documentation for 1963 minuteman missile -> computer -> -> -> At 01:02 PM 10/15/01 -0700, you wrote: -> >I have a little info if it's the D17B (1962) -> > -> >(from "Proceedings of the minuteman computer users group" Tulane Univ -> >1973) -> >Number system: Fractional binary fixed point 2's complemant -> -> Makes absolute sense in order to maximize the throuput. -> -> >Logic levels: 0V = false, -10V = true -> > -> >Data word length: 11 or 24 (double precision) -> >Execution times: add ~78 uSec, multiply ~546 uSec, Double prec multiply -> >~1015 uSec -> -> It probably used 24 bit accumulation... I'm impressed. However, -> that's way too slow to implement any modern scheme (several orders -> of magnitude too slow). -> -> It probably used a mixture of analog/digital control; analog -> for the single-variable, high bandwidth servoing; digital for -> the higher hierarchy control. -> -> Carlos. -> -> -------------------------------------------------------------- -> Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org -> ->