【Hitachi】 HITAC S-810

This was Hitachi's first supercomputer, anounced in August 1982. It employed parallel pipeline arithmetic processing, with multiple computing elements operating in parallel, and thus had the world's fastest capacity -- performing 630 million operations per second. It also subsumed the M Series architecture, and therefore ensured the same ease-of-use as previous general-purpose systems, with features like a TSS function and center function. It was widely used by users at the leading edge of progress in science and technology, primarily research institutions. The first machine was shipped to the University of Tokyo Large Computer Center in October 1983.
The series was comprised of the entry model S-810/5, a higher-end model called the S-810/10, and a top-end model, the S-810/20. Upgrading to higher end models could be done easily, on-site.

S-810 Basic Specifications
  S-810/5 S-810/10 S-810/20
Max. performance 160MFLOPS 315MFLOPS 630MFLOPS
Number of vector instructions 80 83
Vector registers 256words x 16 256wordsx32
Vector mask register 256words x 8
Scalar register 16 32
Vector address register 48
Buffer memory 256KB
Main memory capacity 32-128MB 64-256MB
Expansion memory Capacity 256-1,536MB or 256-3,072MB
Maximum transfer speed 500MB/sec or 1,000MB/sec
Number of channels 8-32

HITAC S-810/20