Light extending from 680 nm up to the wavelengths of the microwaves.

In the array representation of a stack, if a value called stackTop indicates the number of elements in the stack, then stackTop-1 points to the top item of the stack.

Answer the following statement true (T) or false (F)

In the context of an information system, _____ involves keeping data and information available for future use.

a. input b. storage c. feedback d. retrieval