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• 20:01, 9 July 2025 Mr. Goldstein talk contribs created page 5.3.2 Polling, Interrupts, DMA (Created page with "=== 5.3.2 Polling, Interrupts, DMA === The CPU is incredibly fast and busy, so it needs smart ways to communicate with I/O devices without wasting too much time. Imagine the CPU is a very important manager, and I/O devices are employees who sometimes need the manager's attention. There are a few different ways this communication can happen: # '''Polling:''' #* '''How it works:''' This is like the manager (CPU) constantly asking ''each'' employee (I/O device) one by one,...") Tag: Visual edit