Which of the following items is NOT a component of a knowledgebased
system (KBS)?

A.
Knowledge base

B.
Procedural code

C.
Interface between the user and the system

D.
Inference Engine

Explanation:
Procedural code in a procedural language implies sequential execution
of instructions based on the von Neumann architecture of a CPU,
Memory, and Input/Output device. Variables are part of the sets of
instructions used to solve a particular problem and, thus, the data are
not separate from the statements. Such languages have control statements

such as goto, ifthenelse and so on. The program execution is
iterative and corresponds to a sequence of state changes in a state
machine.
*Answer knowledge base, refers to the rules and facts of the
particular problem domain.
*The inference engine takes the inputs to the KBS and uses the knowledge base to infer new facts
and to solve the problem.
*Answer “Interface between the user and the system” refers to the interface between the
user and the system through which the data are entered, displayed,
and output.