lots of mips but no i/o

from Jargon File (4.4.4, 14 Aug 2003)

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).

from The Free On-line Dictionary of Computing (8 July 2008)

lots of MIPS but no I/O

   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, is a notorious recent example).

   [{Jargon File}]

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