Computing in the 1960s
summary
A walk through actual 1960s tooling and oddities from punch card decks to removable disk packs with 2 million digit capacity and drum memory spinning at 12,500 rpm, plus paper tape readers at 150 cps and punches at 15 cps. Shows core memory toroids, the desk‑sized IBM 1620 with table‑lookup arithmetic and variable‑length words, Fortran fixed‑field rules and the arithmetic IF, and a real throughput win by replacing first‑come service with cylinder‑sorted disk requests. punch cards and core memory are demonstrated.
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chapters (18)
- 0:00Start
- 2:47How Important Was the Punch Card
- 8:26082 Card Sorter
- 11:50The Differential Analyzer
- 12:55The First Computer
- 15:10Core Memory
- 16:17Manufacturing Core Memory
- 17:33Semiconductor Technology
- 31:22Ibm Were Masters of Marketing
- 31:49Hardware Floating Point
- 34:38Ibm 1403 Line Printer
- 37:02Ibm 1311 Disk Drive
- 39:55System Software
- 42:44Fortran Idiosyncrasies
- 44:14Do Loop
- 46:49Arithmetic if Statement
- 50:26Dimension Statement
- 53:38The First Digital Computer
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