File No. 5370-30
Systems Supervisor and 1/0 Macros
Summary of Amendments
This edition reflects the availability of virtual storage enhancements and support of the
following new devices:
System/370 Model 115
3203 and 5203 Printers
3340 Disk Storage
3540 Diskette I/O Unit
3780 Data Communication Terminal
5425 Multifunction Card Unit
In addition, technical changes and editorial corrections have been made throughout the
Changes in content are indicated by a vertical bar to the left of the change.
Third Edition (November 1973)
This is a major revision of, and obsoletes, GC33-5373-1.
This edition applies to Version 5, Release 29, of the IBM Disk Operating System,
DOS/VS, and all the subsequent versions and releases until otherwise indicated in new
editions or Technical Newsletters.
Changes are continually made to the information herein; before using this publication in