SPICE (Simulation Program with Integrated Circuits Emphasis) is a general purpose analog circuit simulator. This powerful product is used to check the integrity of circuit designs and to predict circuit behavior.
SPICE was originally developed at the Electronics Research Laboratory of the University of California, Berkeley in 1975 by Donald Pederson.
The original SPICE program was released under a restrictive license, which prohibits developers from altering the source code. A new circuit simulator, based on SPICE, called ng-SPICE is currently being coded and is licensed under the GPL.