looking for documentation for 1963 minuteman missile computer

From: Carlos Murillo <cmurillo_at_emtelsa.multi.net.co>
Date: Mon Oct 15 21:14:26 2001

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_at_nospammers.ieee.org
Received on Mon Oct 15 2001 - 21:14:26 BST