Why the bus has very important role in computer system? A digitalcomputer has a common bus system for 16 registers of 32 bits each.The bus is constructed with multiplexers.a. How many selection inputs are there in each multiplexer?b. What size of multiplexers are needed?c. How many multiplexers are there in the bus
Question
Why the bus has very important role in computer system? A digitalcomputer has a common bus system for 16 registers of 32 bits each.The bus is constructed with multiplexers.a. How many selection inputs are there in each multiplexer?b. What size of multiplexers are needed?c. How many multiplexers are there in the bus
Solution
a. The number of selection inputs in each multiplexer depends on the number of inputs that the multiplexer needs to select from. In this case, since we have 16 registers, we need 4 selection inputs. This is because 2^4 = 16, so four selection inputs can select from 16 different inputs.
b. The size of the multiplexers needed would be 16-to-1. This is because each multiplexer needs to be able to select one output from 16 possible inputs.
c. The number of multiplexers in the bus would be equal to the number of bits in each register. Since each register is 32 bits, there would be 32 multiplexers in the bus. This is because each bit of each register needs to be able to be selected individually, so each bit needs its own multiplexer.
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