NORD-50 boards

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The three CPU racks of a NORD-50

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

Board Drawing Name Product number Notes
1500 1A00 322236 N-50 I/O Control
1501 1A19 322237 Address Arithmetic
1502 1A20 322238 Registers
1503 1A21 322239 Arithmetic Buffer
1504 1A22 322240 NORD-50 Controller
1505 1A23 322241 Register Address
1506 1A24 322242 Cycle Counter
1507 1A25 322243 Arithmetic Control
1508 1A26 322244 Chip Select
1510 1A28 322246 Instruction Control
1511 1A29 322247 Shift Matrix A
1512 1A30 322248 Shift Matrix B
1513 1A31 322249 Data Selector
1514 1A32 322250 Floating Arithmetic
1515 1A33 322251 Shift Control
1516 1A34 Floating Control
1517 1A35 322253 Data Buffer
1518 322254 Floating Control (1)
1519 1A37 Timing Control
1520 322256 Data Buffer and Clock (1)
1521 1A39 322257 MUL-DIV Arithmetic
1522 1A40 322258 Output Selector
1523 1A41 322259 B-Input
1524 1A42 322260 Exponent Arithmetic
1525 1A43 322261 MUL-DIV Timing
1526 1A44 322262 MUL-DIV Control
1531 1A49 322267 Device Registers
1532 1A50 322268 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 322152 Data and Address Bus Selector

References and sources

  1. Norsk Data Document ND–05.004.01 NORD-50 CPU HARDWARE MANUAL I