Operating systems (OS) serve as the foundation for computer systems, managing hardware resources and providing a platform for software applications to run.

Here are some common type

Single-User, Single-Tasking OS

Single-User, Multi-Tasking OS

Multi-User OS

Real-Time OS (RTOS)

Network Operating System (NOS)

Distributed Operating System

Mobile Operating System

Embedded Operating System

Server Operating System

Batch Processing OS