[問題] OS-一題選擇題
1.The strategy that holds output for a device that cannot accept interleaved
data stream
a)buffering
b)caching
c)spooling
d)dma
解答是寫c
可是spooling不是i/o和cpu 可以同時執行嗎?
為什麼不能接受interleaved data stream呢?
2.這個敘述是錯的
To be able to efficiently dispatch to the proper interrupt handler for a
device, polling the devices to see which one raised the interrupt is more
efficient than to use interrupt vector
解答寫：interrupt vector 比較有效率，為什麼呢??
謝謝
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