IBM System/360 Operating System: MFT Guide, OS Release 21.7, GC27-6939-10

The record

Type: Technical manual
Tier: A: Vendor documentation, a government document, a technical manual or an official benchmark result. One tier A source is sufficient to publish a figure.
Locator: Eleventh edition with Technical Newsletter GN28-2546; printed p. 69 (PDF p. 71), Minimum System Storage and Device Requirements; printed p. 18 (PDF p. 20), definition of K
Published: March 1972
Consulted: 2026-09-26
Address: https://bitsavers.org/pdf/ibm/360/os/R21.7_Apr73/GC27-6939-10_MFT_Guide_R21.7_Mar72.pdf
Retrieved: 12063619 bytes, SHA-256 f966b2a421f97b82… Recorded by the pipeline as evidence of what was downloaded, never as a fact about the hardware.
License: Copyright IBM. Short extracts are retained to verify cited facts.
Usage: The March 1972 edition incorporates Technical Newsletter GN28-2546 dated April 16, 1973. The resulting scan applies to OS Release 21.7; it does not document the software available at the Model 50's introduction.