NORD-50 boards

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

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) Sintran.com List of NORD-50 boards