looking for documentation for 1963 minuteman missile computer

From: Peter C. Wallace <pcw_at_mesanet.com>
Date: Mon Oct 15 15:02:34 2001

On Mon, 15 Oct 2001 jtinker_at_coin.org wrote:

> I'm looking for documentation for a 1963 minuteman missile navigation
> computer. Any leads would be appreciated.
>
> Thanks,
> John Tinker
>
>
>


I have a little info if it's the D17B (1962)

(from "Proceedings of the minuteman computer users group" Tulane Univ
1973)

Type: Serial synchronous

Number system: Fractional binary fixed point 2's complemant

Logic levels: 0V = false, -10V = true

Data word length: 11 or 24 (double precision)

Instruction length: 24 bits

Intructions: 39

Maximum I/O words/Second: 25600

Execution times: add ~78 uSec, multiply ~546 uSec, Double prec multiply
~1015 uSec


Memory: 24 bits + 3 timing bits
Type: Oxide coated disk
cycle time ~78 uSec
Capacity 5454 words 2727 double prec (24 bit).

I/O: 43 digital lines, 31 pulse type, 12 analog (from 3 8 bit A-D)
     program I/O 800 5 bit c/s


Size: 20" high x 29" diameter

Power 28VDC +- 1V _at_ 17 A

Circuits: DTL+DRL double copperclad gold plated glass fiber laminate
with polyurethane conformal coat



The newer D37C (1964) is mostly the same except has a larger disk and more
instructions

Peter Wallace
Mesa Electronics
Received on Mon Oct 15 2001 - 15:02:34 BST