PACS-9 was made at Kyoto University in 1978 by Tsutomu Hoshino. The name PACS-9 stands for Processor Array for Continium Simulation with 9 processing units.
The nine processings units were connected in 3 x 3 two-dimensional grid. A processing unit had an 8-bit microprocessor and 1KBytes memory. Performance of PACS-9 is 0.01 Mflops on solving Poissson equation.
* flops : float(single precision) operations per second peak performance.