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Why data bus is bidirectional and address bus is unidirectional in most microprocessors?
The data bus is bidirectional because the data bus has to transfer data among the CPU and memory/I/O device, while the address bus is used to send out memory address from the CPU, as it is unidirectional.
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Convert the decimal number 45678 to its hexadecimal equivalent number. Ans: (45678) 10 =(B26E) 16 (45678) 10 =(B26E) 16
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Draw and illustrate the block diagram of DMA controller. Also discuss the various modes in which DMAC works. Direct memory access (DMA) is a process in that an external device
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