compute server
<computer, parallel> A kind of {parallel processor} where the
parallel processors have no I/O except via a bus or other
connection to a {front-end processor} which handles all I/O to
disks, {terminals} and network.
In some antiquated {IBM} {mainframes}, a second CPU was
provided that could not access I/O devices, known as the slave
or attached processor, while the CPU having access to all
devices was known as the master processor.
(1995-03-19)