We hate 2020!

Just when we thought 2020 couldn't get any worse! We were about to re-open after many months of being closed but then disaster struck when a mains water pipe burst and flooded much of the ground floor of the museum.
Sadly re-opening has now been postponed. Read More >>>

No visitors, no workshops, no events, no school visits... no income. We know that things are tough for everyone right now, but if you can afford to help us through these tough times please donate what you can.

There's over 36,000 exhibits here! That should keep you occupied for a bit - get searching!

Or come and get involved on our social media channels ...

Thank you.

INMOS Technical Note 11: IMS B004 IBM PC add-in board

IMS B004 IBM PC add-in board

Stephen Ghee

25 pages.

1. Introduction
1.1 Occam and the Transputer
1.2 Initial requirements for the PC add-in board
2. Design
2.1 Memory
2.2 Parity
2.3 System control
2.4 Interface to PC
3. Implementation
4. Design summary
5. Using the board
5.1 Systems development
5.2 Applications
6. Program 1
7. Program 2
8. Program 3
9. Program 5