- IBM Manuals
- 49 Manuals scanned by Ken Shirriff
- spreadsheet with IBM ALDs in our {CHM} catalog, Paula Jabloner
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- Patents
- Project Manuals and Docs
- IBM 1401, A Modern Theory of Operation by Guy Fedorkow, – Latest update, Version 1.0, Feb 20, 2017 ` Guy is now working on the software history.
- Writeup on qui-binary arithmetic for 1401 Theory of Operation from Ken Shirriff, Aug 09, 2015
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1401 Processor
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
1402 Card Reader
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
1403 Printer
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
1406 Memory
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
1402 Card Reader
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
Place Holder
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
Component /Devices
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
Software
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
General Hardwire
Success is earned, one step at a time. One of the most invaluable skills a person can have is being able to clearly express what they want.
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