Answer:
Operating system.
Step-by-step explanation:
An operating system is a program, or rather, a macro program or set of programs, whose function is to control the computer hardware, and allow the correct operation of the software installed on it, serving as a platform for it. In this way, the operating system allows, basically, the use of the computer in a functional way by the user, who will be able to run different programs and use different hardware thanks to the previous installation of the operating system. The most common operating systems today are Windows and macOS.