Fragment 21 of 72 · drawer 02
Overnight batch return trace
A fictional institutional trace separating brief processor use from the long queue, handover, and retrieval surrounding it.
- Accession
- MW-F-021
- Representative period
- Reconstructed shared-computing cycle, 1960s
- Drawer
- Logs & traces
- Certainty
- moderate
Overnight batch return trace
Reconstructed shared-computing cycle, 1960s
Observed surface
16:42 deck accepted at counter / receipt issued
18:10 job classified and placed behind higher-priority work
23:58 reader accepts control section
Implied procedure
00:01 compilation stops at first invalid statement
00:02 diagnostic listing enters print queue
03:17 output placed in collection rack
Interpretive residue
08:36 submitter retrieves result / no computation result produced
Machine time lasted minutes; elapsed human time crossed a night.
Accountability record
Evidence beneath the reconstruction.
These institutional sources support the mechanism or historical practice interpreted above. They do not contain this reconstructed record, its wording, or its invented values.
- IBM History · 2024 The IBM 650 Describes the operational shift from overnight card batches toward more continuous data processing. Open institutional record ↗
- MIT Computation Center · 1962 An Experimental Time-Sharing System Corbató, Daggett and Daley contrast interactive time-sharing with batch-monitor feedback loops in which correcting one program error could require hours or a full day. Open institutional record ↗