GATE EC Digital Circuits questions
Practise Digital Circuits questions for GATE EC. Explore official PYQs and original subject-wise quizzes, check answers and view available solutions. Free, no sign-in.
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The contents of Register and Accumulator of microprocessor are and respectively. The contents of and the slatus of carry flag and sign flag after executing instructions are
A sequential circuit using Flip-Flop and logic gates is shown in figure, where and are the inputs and is the output. The circuit is
For the bit shown, the output voltage is
For the logic circuit shown in, the simplified Boolean expression for the output is
The resolution of a - bit counting is volts. For an analog input of volts, the digital output of the will be
Commercially available gears use two ground lines and one negative supply in order to
The logical expresion is equivalent to
If is used as the chip select logic of a in an system, then its memory range will be
The ripple counter shown in the given figure is works as a
For a binary half-subtractor having two inputs and , the correct set of logical expressions for the outputs ( = minus ) and borrow) are
The minimized form of the logical expression is
The -map for a Boolean function is shown in the figure is The number of essential prime implicants for this function is
The figure is shows a mod- counter, here is equal to
An instruction used to set the carry Flag in a computer can be classified as
For the identity , the dual form is
The advantage of using a dual slope in a digital voltmeter is that
Two 's complement number having sign bits and are added and the sign bit of the result is . Then, the occurrence of overflow is indicated by the Boolean function
An processor control the flow of information between
An equivalent complement representation of the 's complement number is
In the figure is and , the input is now replaced by a sequence . , the outputs and will be