ALSO CALLED: 64-bit Computers
DEFINITION: In general, a supercomputer center is a site with a supercomputer that is shared by a number of other sites, usually research sites. Formerly, in the United States, there were five supercomputer centers interconnected on the vBNS, a special backbone network financed by the National Science Foundation (NSF) and operated by MCI for the exclusive use of designated  … 
Definition continues below.

SUPERCOMPUTERS DEFINITION (continued): …  research centers. On October 1, 1997, the five supercomputer centers were replaced by two new NSF-funded programs. The new program, Partnerships for Advanced Computational Infrastructure (PACI), named two of the former supercomputer center sites as focuses for a new scientific technology infrastructure (known as the National Technology Grid) that would interconnect 50 university and scientific sites.

The first of the two NSF-funded programs is the National Computational Science Alliance (Alliance), being led by the National Center for Supercomputing Applications (NCSA) in Urbana, Illinois. … 
Supercomputers definition sponsored by WhatIs.com, powered by WhatIs.com an online computer dictionary