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Explain the term step-wise refinement.
Ans: Step Wise Refinement
Refinement is a method of elaboration. Here one starts with a statement of function that is described at a high-level abstraction. That is the statement defines the program/function conceptually but gives no information about internal working. Refinement causes the programmer to elaborate on the original statement giving more and more detail. In a stepwise refinement, at every step of refinement one or various instructions of the given program are decomposed into more detailed instructions.
What is phase encoding or Manchestor encoding? It is the method for combining clock information with data. It is a scheme in which alters in magnetization occur for each data
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