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Why do they still use IRQs with PCs???

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Mac doesn't, plus is there any advantages???

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5 minutes ago, Edward78 said:

Mac doesn't, plus is there any advantages???

Then you can prioritize user tasks over background tasks?

or did you mean something else?

Positive Mental Additude!

Just another Tired IT guy...

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Of course Macs use IRQs as well, they just work harder to hide such details from you. IRQs are a way for hardware to tell the your app/driver/whatever that "Hey, you wanted to know when something happened to me. Well, it happened, do something!" Otherwise, drivers etc. would have to keep polling the hardware constantly, causing an extreme loss of performance and it could mean missing events entirely.

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