OPERATING SYSTEM
An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.
POWERS THAT AN OPERATING SYSTEM POSSESSES
- Processor Management
- Device Management
- Memory Management
- File Management
- Security
- Control over system performance
- Job accounting
- Error detecting aids
- Coordination between other software and users.
OS MANAGEMENT!
PROCESSOR MANAGEMENT-:
In a multi-tasking environment of operating system. The machine which can do multiple processing at a particular time. This process is called processor management.
Keeps tracks of processor and status of process. The program responsible for this task is known as traffic controller.
Some Activities perform by processor management-:
Allocates the processor (CPU) to a process.
De-allocates processor when a process is no longer required.
DEVICE MANAGEMENT-:
Operating system who controls or manage communication drivers is called device management.
Memory Management-:
An operating system which manage a input or outflow of data. It contains primary or secondary storage of data.
Some Activities perform by memory management-:
All executions is done in the CPU(central processing unit).
It also recognise how much time is consumed by the process.
FILE MANAGEMENT-:
A file system is normally organized into directories for easy navigation and usage. These directories may contain files and other directions.
Some Activities perform by file management-:
Keeps track of information, location, uses, status etc. The collective facilities are often known as file system.
Decides who gets the resources.
Allocates or De-Allocate the resources
