Multiple processes communicate with one another through communication lines in the network. In case of distributed systems which are a collection of processors that do not share memory, peripheral devices, or a clock, the operating system manages communications between all the processes.
Operating System provides an interface to create the backup of file system. Operating System provides an interface to the user to create/delete directories. 
Operating System provides an interface to the user to create/delete files. 
Permission varies from read-only, read-write, denied and so on.The operating system gives the permission to the program for operation on file.Program needs to read a file or write a file.Following are the major activities of an operating system with respect to file management − These directories may contain files and other directions.
Each of these media has its own properties like speed, capacity, data transfer rate and data access methods.Ī file system is normally organized into directories for easy navigation and usage. Examples of storage media include magnetic tape, magnetic disk and optical disk drives like CD, DVD. Computers can store files on the disk (secondary storage), for long-term storage purpose.
Operating system provides the access to the required I/O device when required.Ī file represents a collection of related information. I/O operation means read or write operation with any file or any specific I/O device. Drivers hide the peculiarities of specific hardware devices from the users.Īn Operating System manages the communication between user and device drivers. Provides a mechanism for deadlock handling.Īn I/O subsystem comprises of I/O devices and their corresponding driver software. Provides a mechanism for process communication. Provides a mechanism for process synchronization. Following are the major activities of an operating system with respect to program management − Each of these activities is encapsulated as a process.Ī process includes the complete execution context (code to execute, data to manipulate, registers, OS resources in use). Operating systems handle many kinds of activities from user programs to system programs like printer spooler, name servers, file server, etc. It provides users the services to execute the programs in a convenient manner.įollowing are a few common services provided by an operating system −. It provides programs an environment to execute. An Operating System provides services to both the users and to the programs.
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