An open system is what?

A.
A process that has not been terminated

B.
A system built from industry-standard parts

C.
Allows anyone to read and change the source code

D.
Contains free software

Explanation:
Answer B is correct; an open system is system hardware or software built from standard parts, such as an IBM-compatible PC.

Incorrect Answers and Explanations: A, C, and D: Answers A, C, and D are incorrect. A process that has not been terminated is a running process. Open Source software is software source code which may be read or altered. Free software is software that is not restricted by copyrights.