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Thursday, May 16, 2019

IRQ 1 is commonly assigned to the:

IRQ 1 is commonly assigned to the:

  • Sound card
  • Floppy drive controller
  • COM1
  • Keyboard 
IRQ 1 is commonly assigned to the:


In a computer, an interrupt request is a hardware signal sent to the processor that temporarily stops a running program and allows a special program, an interrupt handler, to run instead. Hardware interrupts are used to handle events such as receiving data from a modem or network card, key presses, or mouse movements.

 COM is the original, yet still common, name of the serial port interface on IBM PC-compatible computers. It might refer not only to physical ports, but also to virtual ports, such as ports created by Bluetooth or USB-to-serial adapters.




  1. this is incorrect COM1 is commonly assigned to IRQ4. IRQ1 is assigned to the keyboard controller and cannot be changed


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