Table of Contents
What is interrupt driven OS?
interrupt-driven Denoting a process that is restarted by the occurrence of an interrupt. The operating system will detect the occurrence of an interrupt, determine which process is now free to proceed, and schedule that process to be restarted. See also polling.
Is it possible to have an operating system without interrupts?
Interrupts are important because they give the user better control over the computer. Without interrupts, a user may have to wait for a given application to have a higher priority over the CPU to be ran. This ensures that the CPU will deal with the process immediately.
What would be necessary if there were no interrupt capability on this computer?
If there were no interrupt capability, the program that is using the data would have to wait long enough to assure that the data transfer is complete, in order to prevent data corruption.
What is a trap in OS?
In computing and operating systems, a trap, also known as an exception or a fault, is typically a type of synchronous interrupt caused by an exceptional condition (e.g., breakpoint, division by zero, invalid memory access).
What is the difference between a maskable interrupt and a non-maskable interrupt give an example of each type?
In brief, maskable and non-maskable interrupts are two types of interrupts. The main difference between maskable and non maskable interrupt is that maskable interrupt can be disabled or ignored by the CPU while non-maskable interrupt cannot be disabled or ignored by the CPU.
What is an interrupt-driven process in operating system?
In an interrupt-driven process some other process is allowed to run, and the device responsible for the auxiliary action is able to signal with an interrupt that it has completed its work. The operating system will detect the occurrence of an interrupt, determine which process is now free to proceed, and schedule that process to be restarted.
What does interinterrupt-driven mean?
interrupt-driven Denoting a process that is restarted by the occurrence of an interrupt. When a process initiates an auxiliary action to be carried out by some other process (for example, when a device driver starts the hardware action that will output data to a disk drive ), the initiating process may need to suspend its own activities…
Why are interrupt-driven processes considered wasteful?
No other process can run during this time, which is clearly wasteful. In an interrupt-driven process some other process is allowed to run, and the device responsible for the auxiliary action is able to signal with an interrupt that it has completed its work.
What is a hardware interrupt?
In a hardware interrupt, all the devices are connected to the Interrupt Request Line. A single request line is used for all the n devices. To request an interrupt, a device closes its associated switch. When a device requests an interrupt, the value of INTR is the logical OR of the requests from individual devices.