Question: (b ) (i) Why does DMA have priority over the CPU when both request a memory transfer? Kenapakah DMA mempunyai lebih keutamaan ke atas CPU

 (b ) (i) Why does DMA have priority over the CPU

(b ) (i) Why does DMA have priority over the CPU when both request a memory transfer? Kenapakah DMA mempunyai lebih keutamaan ke atas CPU apabila kedua-duanya meminta pemindahan memori? (10/100) (ii) 256 words need to be transferred from a magnetic disk to a memory section starting from address 1780. The transfer is via DMA. Give the initial values that the CPU must transfer to the DMA controller. 256 perkataan perlu dipindahkan dari cakera magnet ke bahagian ingatan bermula dari alamat 1780. Pindahan ini melalui DMA. Beri nilai awal yang perlu CPU pindahkan kepada pengawal DMA. (10/100)

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