Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T1 & T2
 T4 & T1
 T2 & T3
 T3 & T4

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Microprocessor
Which of the following statements for intel 8085 is correct?

 PC specifies the address of the instruction being executed
 PC specifies the address of the instruction to be executed
 Program Counter (PC) specifies the address of the instruction last executed
 PC specifies the number of instructions executed so far

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Microprocessor
The output data lines of microprocessor and memories are usually tristated because

 More than one device can transmit information over the data bus by enabling only one device at a time
 The data line can be multiplexed for both input and output
 It increases the speed of data transfer over the data bus
 More than one device can transmit over the data bus at the same time

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