Josephson computer - superconductors supercede semiconductors

the Josephson computer elektor september 1980 — 9-15 Large computers can consist of over a hundred thousand logic circuits and are able to execute more than a million instructions per second. Fast as this may seem, a computer 20 times faster than this is currently being developed by IBM. It stems from a brand new branch in technology, namely, the Josephson technique. Its most striking aspect is that it can only function at extremely low temperatures, at which most life has come to a complete standstill, for it is then that electrons move with an increased velocity. superconductors supercede semiconductors die j computer There are two ways in which to expand a computer"s capacity: either by includ- ing more logic circuits, or by enabling them to work at a higher speed. The Josephson computer, the "super brain" of the near future, draws its strength from its rapidity. The speed at which a computer carries out its instructions is measured in the cycle time or clock generator period...