INTRODUCTION TO COMPUTERS
COMPUTER ARCHITECTURE AND ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The ____ controls the I/O devices and transfer of data to and from the primary storage.
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LU
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AU
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ALU
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CU
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Explanation:
Detailed explanation-1: -The interrupt-based I/O method controls the data transfer activity to and from connected I/O devices.
Detailed explanation-2: -This type of data transfer technique is known as DMA or direct memory access. During DMA the CPU is idle and it has no control over the memory buses. The DMA controller takes over the buses to manage the transfer directly between the I/O devices and the memory unit.
Detailed explanation-3: -We learned about different modes of transfer of data between the CPU and I/O devices. Our article can be summarized as follows: We have three different modes of transfer: Programmed i/O, Interrupt-initiated I/O, and Direct Memory Access (DMA).
There is 1 question to complete.