Description

The introduction explains that an operating system (OS) is a fundamental component of a computer system that manages hardware resources and provides services for application programs. It acts as an interface between users, applications, and computer hardware, allowing systems to operate efficiently, securely, and conveniently.

The author introduces operating systems as both resource managers and control programs. As a resource manager, the OS allocates and coordinates resources such as processors, memory, storage, and input/output devices. As a control program, it manages the execution of programs and helps prevent errors and misuse of system resources.