What do we call the text or characters displayed by a program?

The term used to refer to the text or characters displayed by a program is "strings." In programming, a string is a sequence of characters that can include letters, numbers, spaces, and symbols. Strings are typically used to represent text in a way that can be processed or manipulated by various functions within a program.

For example, when displaying messages, user inputs, or any textual content in an application, strings are employed. A string can be easily manipulated through various operations, such as concatenation, slicing, or searching for specific characters or substrings.

Understanding strings is fundamental in programming, as they are one of the basic data types that allow for user interaction through textual communication. Other choices present different concepts; for instance, arrays are data structures that hold multiple values of the same type, values refer to actual data stored in variables, and data types categorize the forms that data can take, such as integers, booleans, or strings themselves.