lost in the underflow
= L =
lots of MIPS but no I/O adj.
Used to describe a person who
is technically brilliant but can't seem to communicate with human
beings effectively. Technically it describes a machine that has
lots of processing power but is bottlenecked on input-output (in
1991, the IBM Rios, a.k.a. RS/6000, was a notorious example).
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.