An operating system, or OS, is a software that acts as an interface between the user and the computer hardware. It is an essential component of any computing device, whether it’s a desktop computer, laptop, tablet, or smartphone. The OS is responsible for managing the system’s resources, such as the processor, memory, and input/output devices, and it provides a platform for running applications.

There are several types of operating systems, including Windows, macOS, Linux, iOS, and Android. Each OS has its own unique features, user interface, and compatibility with software applications.

This PDF contain Handwritten Notes of Operating System.The content inside the OS PDF are organized in such a way that it is useful for both academic as well as interview purpose.