A supercomputer developed at BBN Technologies, named after the "butterfly" multi-stage switching network around which it was built. It could have up to 512 CPUs connected to allow every CPU access to every other CPU' s memory, albeit with about 15 times the latency than for its own. The earlier GP-1000 models used up to 256 {Motorola 68020}s. The later TC-2000 models used up to 512 {Motorola 88100}s. Language developed for, or ported to, the BBN Butterfly were Butterfly Common LISP, Butterfly Scheme, Delirium, and MultiScheme. . (2003-11-10)
