IBIS and SPICE: Modeling languages for the demanding EDA industry

What is CMOS?
Complementary Metal Oxide Semiconductor, or commonly referred to as CMOS, is a type of IC which includes microprocessor, microcontroller, static RAM and other digital logic circuits.

What does SPICE stand for?
Simulation Program with Integrated Circuit Emphasis is a program widely used to simulate the performance of analog electronic systems and mixed-mode analog and digital systems. SPICE solves sets of non-linear differential equations in the frequency domain, steady state and time domain and can simulate the behavior of transistor and gate designs.