![]() 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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