This is a list of known boards used in the NORD-50 CPU. The list is based on the documentation for NORD-50 serial 11[1]
Table of NORD-50 Boards
The three CPU racks of a NORD-50
| Board |
Drawing |
Name |
Notes
|
| 1500 |
1A00 |
N-50 I/O Control |
|
| 1501 |
1A19 |
Address Arithmetic |
|
| 1502 |
1A20 |
Registers |
|
| 1503 |
1A21 |
Arithmetic Buffer |
|
| 1504 |
1A22 |
NORD-50 Controller |
|
| 1505 |
1A23 |
Register Address |
|
| 1506 |
1A24 |
Cycle Counter |
|
| 1507 |
1A25 |
Arithmetic Control |
|
| 1508 |
1A26 |
Chip Select |
|
| 1510 |
1A28 |
Instruction Control |
|
| 1511 |
1A29 |
Shift Matrix A |
|
| 1512 |
1A30 |
Shift Matrix B |
|
| 1513 |
1A31 |
Data Selector |
|
| 1514 |
1A32 |
Floating Arithmetic |
|
| 1515 |
1A33 |
Shift Control |
|
| 1516 |
1A34 |
Floating Control |
|
| 1517 |
1A35 |
Data Buffer |
|
| 1519 |
1A37 |
Timing Control |
|
| 1521 |
1A39 |
MUL-DIV Arithmetic |
|
| 1522 |
1A40 |
Output Selector |
|
| 1523 |
1A41 |
B-Input |
|
| 1524 |
1A42 |
Exponent Arithmetic |
|
| 1525 |
1A43 |
MUL-DIV Timing |
|
| 1526 |
1A44 |
MUL-DIV Control |
|
| 1531 |
1A49 |
Device Registers |
|
| 1532 |
1A50 |
Data and Address Bus Selector |
|
Table of NORD-50 Boards
There is one NORD-10 board belonging to the NORD-50 installation. It is used to control the NORD-50 from the NORD-10.
| Board |
Drawing |
Name |
Notes
|
| 1071 |
2A71 |
Data and Address Bus Selector |
|
References and sources