1.

Which of the following DMA is used in the IBM PC?(a) Intel 8253(b) Intel 8254(c) Intel 8237(d) Intel 8259This question was posed to me in a job interview.The question is from Implementation of DMA in section Basic Peripherals of Embedded Systems

Answer»

The CORRECT answer is (c) Intel 8237

For EXPLANATION I would SAY: The Intel 8237 is the DMA used in the IBM PC. 8253, 8254 and 8259 are timers developed by Intel.



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