Which term describes the interpreter that executes commands typed as strings?

The term that describes the interpreter that executes commands typed as strings is "Shell." A shell is a user interface for access to an operating system’s services, allowing users to enter commands and receive output. It acts as an intermediary between the user and the operating system, interpreting the commands given as strings and translating them into actions that the operating system can perform.

In the context of the other terms, a "Prompt" refers to the symbol or text displayed in the terminal to indicate that the system is ready to accept input from the user, but it does not itself execute commands. A "Terminal" is a program that provides the interface through which users interact with the shell, which might present the prompt and allow for command input. "Command" refers to the specific instruction that a user types, which is then processed by the shell but does not encompass the execution aspect itself.

Therefore, identifying the shell as the interpreter highlights its crucial role within the operating system for executing commands entered by the user.