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Q. Explain Structure of Control Unit?
A control unit has a set of input values on the foundation of which it produces an output control signal which in turn performs micro-operations. These output signals control execution of a program. A general model of control unit is displayed in Figure below.
Figure: A General Model of Control Unit
In the model given above CU is a black box that has certain inputs and outputs.
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Which TTL logic gate is used for wired ANDing ? Ans. Open collector output, TTL logic gate is used.
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