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File No. 7080-30
Form C28-6237-1
Systems Reference Library
IBM 7080 Input/Output Control System
for Use with 729 Magnetic Tape Units
This manual is a major revision of the Reference
Manual, "IBM 7080 Input/Output Control for Use
with 729 Magnetic Tape Units--lOCS80, "Form
C28-6237, which is now obsolete. The revision in-
corporates documentation of major changes to the
system, which is now designated 729 laCS and sup-
plied in the form of library material to the 7080
Processor, rather than a preassembled system.
These changes were initially described in Technical
Newsletter N28-1054, dated February 4, 1963 ~ which
is now obsolete. The manual also incorporates minor
changes and/or additions throughout the text.
The manual details the various functions per-
formed by the 729 laCS. The publication describes
macro-instructions, the required and/or optional
procedures for using the laCS, the waiting loops and
messages that may occur during its use, the avail-
able versions of the laCS, and the relationship of the
7080/729 laCS to the 705 III laCS.