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A decoder is required in case of a ______________(a) Vertical Microinstruction(b) Horizontal Microinstruction(c) Multilevel Microinstruction(d) All types of microinstructionsI got this question in final exam.This key question is from The Control Unit topic in chapter Basic Computer Organisation of Computer Fundamentals

Answer»

Right answer is (a) Vertical Microinstruction

The EXPLANATION: There are TWO types of microinstructions: HORIZONTAL and Vertical.

In a horizontal microinstruction, each bit represents a signal to be activated whereas, in case of vertical microinstruction bits are decoded and, the decoder then produces SIGNALS.



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