Reversible conveyer computation in array of parametric quantrons

A possibility of physically and logically reversible processing of digital information in Josephson-junction circuits of a reasonable complexity has been considered. As example, a 8-bit 1024-point fast convolver has been designed on the basis of a two-dimentional quasi-uniform array of about250x30,000 parametric quantrons. This completely reversible conveyer device can operate with the estimated rate of at least about109 numbers per second, which corresponds to about1014 binary logical operations per second. At this rate the power dissipation in the whole device can still be as low as about30nW. A new mode of the parametric quantron operation with larger parameter margins is also described