An overview of various computing paradigms and the physics that enables them: analog computers, mechanical, chemical computing, digital computing machines, quantum computers. Understanding the physical limits of computation.

Analog computing

Neural models of computation

Mechanical computers,

Digital computers and binary switches

Magnetolectronics

Optical computing

Quantum computers

Speed, footprint and von Neumann bottleneck in computing

Power dissipation in computing

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Bennett, Charles H. "The thermodynamics of computation—a review." International Journal of Theoretical Physics 21, no. 12 (1982): 905-940.