108 (NORD-1 card)
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108 Register II, is a card that is used in the NORD-1 CPU.
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Introduction
The card is made in the standard NORD-1 card format. It is one fourth of the R, P, X and B registers combined with an adder. This is a central part of the ALU.
| CPU model | Crate position |
|---|---|
| 29 | C10, C14, C18, C22 |
| 35 | C10, C14, C18, C22 |
The logic diagram is documented in drawing 2A08.[1]
Switches and indicators
There are no switches or indicators on this board.
BOM
This list contains the logic circuits used, passive components are not listed.
- 5 x 7400
- 3 x 7451
- 8 x 7453
- 8 x 7474
- 2 x 7483
Reference
- ↑ HARDWARE MANUAL NORD 1
- Hardware in NORD-1 Serial 47