Question

Define interrupts and explain the functions of operating system

Answer 1

Interrupts means when the work and the process of the working in a computer is going on and suddenly the lights switch off then the data gets interrupts.

functions of the operating system are to perform the work of given data.
Maintain the capability of the performance.etc

Answer 2

Interrupts and explaination for the functions of operating system:

• The interrupt is a signal that indicates the operating system to hold the work on one process and start work on another.

• The operating system decides which work needed to be done first by the CPU.

• Almost all the computers are with the interrupt-driven.

• All the Input and Output devices are controlled through the Operating System.

• Interrupts Provides the user control over the Computer when an External device like Keyboard, mouse or any other Process Running needs an urgent execution, then Interrupt Signals are Send to the Operating System.

• After the computer receives the interrupt signal, then the computer decides to continue the current program or begins to run another program.

The function of OS are:

• Security
• Memory Management
• Device Management
• Processor Management

Security:

• It protects the date of the user by providing enough security with a password.

• It also prevents the user from unauthorised access to data or a program.

Memory Management:

• It manages the main memory made up of a large number of array of bytes.

• In the multitasking process, the OS allocates the memory space for the specific address.

• It also decides to give the permission for which process which is requested for execution.

Device Management:

• It keeps track of all  the devices which is connected to the computer such as I/O devices.

• Also it manage the external devices which is attached like printer, keyboard, mouse etc.

Processor Management"

• The OS decides the sequence of which process should enter into the critical section, the process timing and the waiting time of the next process.

• This is called scheduling method.

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