Final answer:
Programmers refer to hidden implementation details as existing in a black box. Black boxing is a concept that allows programmers to hide the internal workings of a component or function, allowing them to focus on using it instead. They can understand the inputs and outputs of the black box without knowing the actual implementation.
Step-by-step explanation:
Programmers refer to hidden implementation details as existing in a(n) black box.
When programmers design software systems, they often use a concept called 'black boxing' to hide the internal workings of a component or function. This means that the programmer doesn't need to worry about how the component actually works, as long as it behaves as expected. Instead, they can focus on using the black box and understanding its inputs and outputs.
For example, let's say a programmer wants to sort a list of numbers. They can use a built-in function, like 'sort()', without knowing the details of how the function is implemented. They know that it takes a list of numbers as input and returns a sorted list as output, but they don't need to know how the sorting algorithm works.