Computation Is Substrate-Independent: Information Processing Is Not Tied to Silicon
computer science / mathematics · The general definition of computation ()
Computation is best understood as a process that takes input, processes information, and produces output. This definition does not require a silicon chip or any particular physical substrate.
Core Concepts
The Problem
What counts as a computer?
The Claim
A computer is any object that takes in input, processes information, and produces output; it is not limited to machines built on silicon.
Key Evidence
- •The episode defines a computer as any object that takes in input, processes information, and produces output.
Practical Implication
If computation is material-independent, information-processing devices can be built from biological molecules such as DNA.
Nuance & Limits
This definition expands the design space for computing but does not by itself specify how efficiently or reliably a given substrate can compute.
Source Material
Citation Density
Not tracked
Gaps
- ⚠ Efficiency and programmability limits of DNA computing compared with silicon
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