System/360 Model 20
(Machines with serial no. 50,000 and above) Volume 2
This publication (Volume 2) and its companion publication (Volume 1, 5. 2560 Multi-Function Card Machine Attachment Feature, 2501 Card
Form Y33-1024) constitute the Field Engineering Maintenance Diagrams Reader Attachment Feature, 1442 Card Punch ModelS Attachment
manual for the IBM 2020 Processing Unit (machines with serial number Feature, System/360 Model 20 (Machines with serial no. 50,000 and
50,000 and above) in the IBM System/360 Model 20. Volume 2 contains above), Form Y33-1033.
operations information (Section 5) and Volume 1 contains information on |