Set: Interupt Requests (IRQ)s

Familiarize

Learn

Test

Play Scatter

Play Space Race
Combine with other sets Login to add to Favorites
Print: Term List | Flashcards Editing not allowed
Export Deleting not allowed

Share these flash cards

With group: None
HTML link to set: Tiny link:
Share on Facebook Share on MySpace

All 17 terms

TermDefinition
Interupt RequestIRQs are used by computer components to request information from the CPU. The IRQ travels along a wire on the motherboard to the CPU. When the CPU receives an interrupt request, the CPU determines how to fulfill this request. The priority of the request is determined by the IRQ number assigned to that computer component. Older computers only had eight IRQs to assign to devices. Newer computers have 16 IRQs, which are numbered 0 to 15. As a general rule, each component in the computer must be assigned a unique IRQ. IRQ conflicts can cause components to stop functioning and even cause the computer to crash. With the numerous components that can be installed in a computer, it is difficult to assign a unique IRQ to every component. Today, most IRQ numbers are assigned automatically with plug and play (PnP) operating systems and the implementation of PCI slots, USB ports, and FireWire ports.
IRQ 0System Timer
IRQ 1Keyboard Controller
IRQ 22nd IRQ Controller Cascade
IRQ 3Serial 2 (COM2:)
IRQ 4Serial 1 (COM1:)
IRQ 5Sound/Parallel 2 (LPT2:)
IRQ 6Floppy Drive Controller
IRQ 7Parallel 1 (LPT1:)
IRQ 8Real-Time Clock
IRQ 9Avail. (as IRQ2 or IRQ9)
IRQ 10Available
IRQ 11Available
IRQ 12Mouse Port/Available
IRQ 13Math Coprocessor
IRQ 14Primary IDE
IRQ 15Secondary IDE

Set Information

Terms 17
Creator dosborne
Created September 27, 2009
Groups None
Subject IT Essentials
Access Anyone
Edit Creator Only
Get rid of ads on Quizlet
Pop out

Discuss

No Messages
Last Message: never

You must be logged in to discuss this set.

Top Users

  1. dosborne - 17 scores

Most Missed Words

  1. Interupt Request IRQs are used by computer components to request information from the CPU. The IRQ travels along a wire on the motherboard to the CPU. When the CPU receives an interrupt request, the CPU determines how to fulfill this request. The priority of the request is determined by the IRQ number assigned to that computer component. Older computers only had eight IRQs to assign to devices. Newer computers have 16 IRQs, which are numbered 0 to 15. As a general rule, each component in the computer must be assigned a unique IRQ. IRQ conflicts can cause components to stop functioning and even cause the computer to crash. With the numerous components that can be installed in a computer, it is difficult to assign a unique IRQ to every component. Today, most IRQ numbers are assigned automatically with plug and play (PnP) operating systems and the implementation of PCI slots, USB ports, and FireWire ports. - 1 miss
  2. IRQ 13 Math Coprocessor - 1 miss
  3. IRQ 6 Floppy Drive Controller - 1 miss
  4. IRQ 1 Keyboard Controller - 1 miss
  5. IRQ 11 Available - 1 miss
  6. IRQ 2 2nd IRQ Controller Cascade - 1 miss
  7. IRQ 8 Real-Time Clock - 1 miss