Black Box may refer to any of the following:
Device commonly used in the early 1970s, a black box, is a testing technique where the individual testing the program examines the input and outputs of the program. The person doesn’t need to know about the inner workings of the program, only a basic understanding of how the program works to ensure the program functions properly.
Black Box is also the name of a company.
Beta testing, Hardware terms, Software terms, Test, White box