Quantum mechanics

Scale (ratio)

Parallel computing

Computer science

Distributed computing

Computer network

Physics

Computer architecture

Interconnection

For over a decade prophets have voiced the contention that the organization of a single computer has reached its limits and that truly significant advances can be made only by interconnection of a multiplicity of computers in such a manner as to permit cooperative solution. Variously the proper direction has been pointed out as general purpose computers with a generalized interconnection of memories, or as specialized computers with geometrically related memory interconnections and controlled by one or more instruction streams.

Validity of the single processor approach to achieving large scale computing capabilities