c. 1940–1990 CE
Computing
Programmable calculation and control—turning information processes into automatable machinery.
Previous state
Calculation and control largely human, mechanical, or hardwired for narrow tasks.
New state
General-purpose programmable machines that store instructions and process symbolic information at rising speed and falling cost.
New capability
Automate arbitrary symbol manipulation and complex control logic
Enabling conditions
- Electrical switching and later semiconductors
- Wartime and Cold War demand for calculation
- Abstraction layers: languages, operating systems, software markets
Technologies
- Artificial Intelligence
- Digital Minds
- Human-Machine Systems
Social changes
- New skilled classes of programmers and operators
- Organizations restructured around information systems
- Surveillance and planning capacities expand
Major consequences
- Scientific modeling and logistics leap in power
- Foundation for networks and modern AI
- Cognitive work begins a long renegotiation with machines
New bottlenecks
- Software complexity and reliability
- Human interface and organizational adoption
- Who writes the rules encoded in systems
Competing explanations
- Hardware cost curves as primary driver
- Software abstractions and markets as primary driver
- Military demand as indispensable midwife
Notes
From calculation to cognition infrastructure
Computing's early visible win was arithmetic. Its deeper civilizational role is programmable control over information.
Evidence and ambiguity
Moore-era cost declines are well evidenced. How much of late-20th-century productivity (or its puzzles) should be credited to computers remains interpretive.
Bridge
Networks socialize computing. AI weaponizes and generalizes pattern recognition on top of it. The transition chain is continuous even when marketing prefers clean epochs.
Sources
- 1. The Information — James Gleick (2011)
- 2. The Dream Machine — M. Mitchell Waldrop (2001)