20 CHAPTER 1 / INTRODUCTORY REMARKS AND GLOSSARY
Mixed-rail output: dual, logically equal outputs of a device (e.g., a flip-flop) where one
output is issued active high while the other is issued active low, but the two are not issued
simultaneously.
Mnemonic: a short single group of symbols (usually letters) that are used to convey a
meaning.
Mnemonic state diagram: a fully documented state diagram.
Model: the means by which the major components and their interconnections are repre-
sented for a digital machine or system.
Module: a device that performs a specific function and that can be added to or removed
from a system to alter the system’s capability. A common example is a full adder.
Modulus-n counter: (see divide-by-n counter)
Monad: a minterm (or