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What are interrupts initiated by instructions called?
Those would be software interrupts. Interrupts initiated by the hardware would be hardware interrupts. While the socket a mouse is plugged into would use a hardware interrupt, a mouse driver would use a software interrupt.
Interrupts originate with either?
hardware or software
Interrupts originate with either hardware or software is this correct?
true
What can originate with either hardware or software?
Interrupts page 260 of the Operating systems book
What is an 8085 interrupt?
There are 2 types interrupts in 8085 such as: 1)hardware interrupt 2)software interrupt
What chip controls hardware interrupts?
Hardware interrupts can be controlled by the 8259 Programmable Interrupt Controller
How many hardware interrupts in 8086?
There are two hardware interrupts in the 8086/8088. INTR, which is maskable, and NMI, which is not.
What are the various type of interrupts?
There are three types of interrupts.... 1. internal Interrupts 2. External Interrupts 3. Software Interrupts... read more
Why does kernel run with interrupt disabled?
The Linux kernel does not run with interrupts disabled. Otherwise none of your hardware nor any pre-emptive multitasking would even work.In fact, system calls work vie software interrupts. Withour interrupts your applications can't even run.Every now and then a kernel may want to MASK interrupts, which allows the kernel to ignore certain interrupts if it's too busy or has no need to service them. Or there are non-maskable interrupts, which the kernel cannot ignore. Those are usually interrupts caused by important hardware, such as the system timer, and the CPU itself.
How many hardware interrupts are on a standard PC?
16
Is VDU hardware or software?
A VDU is hardware.
HOW IS SOFTWARE INTERRUPT INITIATED?
Interrupt signals initiated by programs are called software interrupts. A software interrupt is also called a trap or anexception. A signal informing a program that an event has occurred. When a program receives an interrupt signal, it takes a specified action (which can be to ignore the signal). Interrupt signals can cause a program to suspend itself temporarily to service the interrupt. Interrupt signals can come from a variety of sources. For example, every keystroke generates an interrupt signal. Interrupts can also be generated by other devices, such as a printer , to indicate that some event has occurred. PCs support 256 types of software interrupts and 15 hardware interrupts. Each type of software interrupt is associated with an interrupt handler -- a routine that takes control when the interrupt occurs. For example, when you press a key on your keyboard, this triggers a specific interrupt handler. The complete list of interrupts and associated interrupt handlers is stored in a table called the interrupt vector table , which resides in the first 1 K of addressable memory.
