Introduction to Operating System

An operating system acts as an intermediary between the computer hardware and the user. In short, it is an interface between computer hardware and the user.

Porcess

• A process is an instance of a program that is currently being executed. It is an independent entity that consists of an address space, a set of data structures, and one or more threads of execution. The state of a process can be represented by various states, such as running, ready, waiting, and terminated. Process models can vary, but common ones include the parent-child model and the peer model.