An operating system is a collection of software that manages computer hardware and provides services for programs.
Specifically,it hides hardware complexity,manages computational resources,and provides isolation and protection.major components of an OS are file system,schedule,and device driver.
Types of operating systems:
- I/O structure.
- Storage structure and storage hierarchy
- Operating system services
- Process scheduling algorithms
- Inter process communication
- CPU scheduling algorithms
- Dead lock and dead lock prevention and avoidance.
