View of operating system

User View of Operating System:
The Operating System is an interface, hides the details which must be performed and presents a virtual machine to the user that makes easier to use. Operating System provides the following services to the user.

• Execution of a program
• Access to I/O devices
• Controlled access to files
• Error detection (Hardware failures, and software errors)

Hardware View of Operating System:
The Operating System manages the resources efficiently in order to offer the services to the user programs. Operating System acts as a resource managers:

• Allocation of resources
• Controlling the execcution of a program
• Control the operationss of I/O devices
• Protecftion of resources
• Monitors the data

System View of Operating System:
Operating System is a program that functions in the same way as other programs . It is a set of instructions that are executed by the processor. Operating System acts as a program to perform the following.

• Hardware upgrades
• New services
• Fixes the issues of resources
• Controls the user and hardware operations