Intel Microprocessor Question:

How to measure the clock frequency for 8086 intel microprocessor?
How tri-state logic defined?
What the difference is between stack and program counter?
What are the different functional units that are present in microprocessor?
What is the difference between Maskable and non-maskable interrupt?
What are the different types of flags that are available in microprocessor?
What is the difference between AMD processors and Intel microprocessors?
What are the steps involved in 5-stage pipelining?
What is the difference between stack and subroutine?
How to define the physical address of the microprocessor?