Practical design procedure have some

DIGITAL LOGIC DESIGN - COMBINATIONAL LOGICS MCQ

• Code conversion circuits mostly uses
• Full Adder combinational circuits has 3 inputs and
• The NOR function is the dual of
• Designing combinational circuit involves
• Half adder circuits requires two binary
• The subtraction of two binary numbers is accomplished by taking complement of Subtrahend and adding into
• Circuits that employs memory elements in addition to gates is called
• When both inputs are 1, the output of XOR is
• The simplified expression of full adder carry is
• Practical design procedure have some
• Half subtractor have an output to specify that 1 has been?
• Logic gates takes input signals and generates signals to
• For code conversion how many bits are required for BCD input and Excess-3 outputs?
• Two bit subtraction is done by
• Dual of the NAND function is
• Besides NAND gate universal gate is
• The most basic arithmetic function is
• Variable in Boolean expressions can be expressed as
• Circuit that is said to be universal gate is
• The connection from output to one of input gate is
• In NAND logic analysis procedure application requires repeated application of
• Circuits whose output depends on directly present input is called
• Full subtract circuits have
• In designing a combinational circuits, truth table defines the relationship of
• The most significant bit of arithmetic addition is called
• Flip flop are constructed using
• Two bit addition is done by
• AND gates are converted to NAND gates using
• In don\'t cares map input are marked by
• OR operation is achieved through a NAND gate with Additional
• The simplified expression of half subtractor borrow is
• The analysis of combinational circuits is a
• The simplified expression of full subtractor borrow is
• OR gates are converted to NAND gates using
• To implement the Boolean function with NAND gates we convert the function to
• Designing combinational circuits we consider?
• Full adder performs addition on
• When both inputs are different the output of XOR is
• The convenient way is to convert NAND logic diagram to
• The result of two bit subtraction is called?
• For digital circuits logical circuits can be
• The truth table can directly be obtained from
• Rather than AND-OR gates combinational circuits are made by
• Combinational circuits are described by
• Sometimes it is necessary to use the output of one system as the
• If two systems have different codes then circuit inserted between them is
• In the design procedure input output values are assigned with
• In analysis procedure information processing task is correlated with
• The NAND logic conversion is facilitated using symbols of
• The multiple variable XOR operation is defined as

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