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Serial Numbers and Options for "our" 1401s

This data is being moved to Individual System Characteristics
Executive Summary
We have two "full blown" 1401 systems, each with all the usual options:
- 16,000 characters of core memory
- three or more 729 mag tape units each
- optional index registers, branch conditions, ...
capable of running all IBM standard software not needing additional peripherals.
Both machines were made after the serial # 25,000 "re-packaging" change.

The two machines are commonly identified as:
- DE indicating the 1401 system from Germany (arrived at CHM first)
- CT indicating the 1401 system from Connecticut

DE - indicating the 1401 system from Germany (arrived at CHM first)
German (DE) 1401:
Serial number 28,421
Built: May, 1964
Elapse run time meter at arrival = 68,730.02 hours

The 1401 shipment arrived at the CHM's loading dock on Thursday, March 18th, 2004
Pictures and text.

The machine used European power (50 Hz), we used a 60 Hz (local power) to 50 Hz converter. Many of the original start-up problems were caused by the limited power of the original power converter.

This machine has two added options:
- pound sterling money capability
- "Overlap", somewhat simultaneous compute and card I/O (read/punch/print)

CT - indicating the 1401 system from Connecticut
Connecticut (CT) 1401:
Serial number = 25,478
Built: 1961
Run time meter at arrival = ? (I don't think the CT machine has a total elapse time meter.)

The 1401 shipment arrived at the CHM's loading dock on Monday May 5th, 2008
Pictures and text.



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