front-end processor

noun, Computers.
1.
a small computer or other dedicated device that performs preliminary processing of data for a host computer.
Origin
1970-75
British Dictionary definitions for front-end processor

front-end processor

noun
1.
a small computer that receives data from input devices and performs some initial processing tasks on it before passing it to a more powerful computer for final processing
front-end processor in Technology

(FEP) 1. A small computer necessary to enable an IBM mainframe using SNA to communicate beyond the limits of the dinosaur pen.
2. A small computer controlling the screen and keyboard of a Symbolics 3600 LISP Machine.