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Citrus2011 [14]
3 years ago
13

IRQ 0 interrupt have _______________ priority ? low ? medium ? highest ? lowest

Computers and Technology
1 answer:
tekilochka [14]3 years ago
4 0

Answer:

Highest

Explanation:

A interrupt request / IRQ is in which instructions are sent to Cpu and uses an interrupt handler to run distinct program . Hardware interrupts are used to manage occurrences such as obtaining modem or network card information, important presses, or mouse motions.

  • Interrupt request 0. – it is a system timer (can not be altered)
  • Interrupt request 1 – keyboard controller (can not be changed)
  • Interrupt request 2 – cascaded IRQ 8–15 signals (any device configured to use IRQ 2 will genuinely use IRQ 9)
  • Interrupt request 3 – serial port 2 controller
  • Interrupt request 4 –  serial port 1 controller
  • Interrupt request 5 –parallel port 2 and 3
  •  Interrupt request 6 - floppy disk controller
  •  Interrupt request 7 –parallel port 1. If a printer is not present, it is used for printers or for any parallel port. It can also possibly be shared with a secondary sound card with cautious port management.

As interrupt number increases priority level decreases, Priority level 0 is the highest priority level .

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