Introduction of Operating System

• Operating system is an interface between user and hardware.
• Resource Allocator
• Manager:-Memory , Processes , Files , Security etc. 

Goals-
        Primary:- Convienience
        Secondary:-Efficiency

Types of Operating System-

•  Batch Operating System
•  Multi-programming Operating  System
•  Multitasking Operating  System 
•  Multiprocessing  Operating  System 
•  Real time  Operating  System