Recent questions tagged tbb-digital-logic-2

The excess $3$ code of decimal number $26$ is:$0100 1001$$01011001$$1000 1001$$01001101$

$1$’s complement representation of decimal number of -$17$ by using $8$ bit representation is:$1110 \ 1110$$1101 \ 1101$$1100 \ 1100$$0001 \ 0001$

If signed numbers are used in binary arithmetic, then which one of the following notations would have unique representation for zero?Sign-magnitude$1$’s complement$2$’s c...

If the input to T-flip flop is $100$ Hz signal, the final output of the three T-flip flops in cascade is :$1000$ Hz$500$ Hz$333$ Hz$12.5$ Hz

Consider a $7$-bit floating-point representation with $3$ bits for the excess-$3$ exponent and $3$ bits for the mantissa represented in normalized form.Then $0.375_{(10)}...

Convert the following $(734 )_8 = ( \dots )_{16}$$C \ 1 \ D$$D \ C \ 1$$1 \ C \ D$$1 \ D \ C$

Convert decimal $153$ to octal. Which of the following will be the equivalent in octal?$( 231)_8$$( 331)_8$$( 431)_8$none of these

Synchronous counters eliminate the delay problems encountered with asynchronous counters because:The input clock pulses are applied only to the first and last stages.The ...

On the fifth clock pulse, a $4$-bit Johnson sequence is $Q0 = 0, \ Q1 = 1, \ Q2 = 1$, and $Q3 = 1$. On the sixth clock pulse, the sequence is ________.$Q0 = 1, \ Q1 = 0, ...

An eight stage ripple counter uses a flip-flop with propagation delay of $75$ nanoseconds. The pulse width of the strobe is $50$ ns. The frequency of the input signal whi...

How many select lines will a $32:1$ multiplexer have?$5$$8$$9$$11$

How many flip flops are required to construct a decade counter?$10$$3$$4$$2$

The device which changes from serial data to parallel data is:COUNTERMULTIPLEXERDEMULTIPLEXERFLIP-FLOP

Karnaugh map is used for the purpose of:Reducing the electronic circuits used.Mapping the given Boolean logic function.Minimizing the terms in a Boolean expression.Maximi...

The number of control lines for $16$ to $1$ multiplexer is ___.$2$$4$$3$$5$

DeMorgan’s first theorem shows the equivalence of:OR gate and Exclusive OR gate.NOR gate and Bubbled AND gate.NOR gate and NAND gate.NAND gate and NOT gate

Which of the following combinations is sufficient to build a half adder?EX-OR gate and NOR gate.EX-OR gate and OR gate.EX-OR gate and AND gate.Four NAND gates.

The decimal equivalent of hex number $1A53$ is:$6793$$6739$$6973$$6379$

In a JK Flip-Flop, “toggle” means:Set $Q = 1$ and $Q = 0$.Set $Q = 0$ and $Q = 1$.Change the output to the opposite state.No change in output.

How many minimum number of two input AND gates and two input OR gates are required to realize $Y = BD+CE+AB$ ?$2, 2$$4, 2$$3, 2$$2, 3$

A 4-bit synchronous counter uses flip-flops with propagation delay times of $15$ ns each. The maximum possible time required for change of state will be _____.$15$ ns$30$...

Shifting a register content to left by one bit position is equivalent to:Division by two.Addition by two.Multiplication by two.Subtraction by two.

The following switching functions are to be implemented using a decoder:$f1= \sum m( 1, 2, 4, 8, 10,14 ), \ f2 = \sum m( 2,5, 9,11 ), \ f3 = \sum m( 2,4,5,6,7)$The mini...

When simplified with Boolean Algebra, $(x + y)(x + z)$ simplifies to:$x$$x + x(y + z)$$x(1 + yz)$$x + yz$

The Boolean expression $ A \cdot B+ A \cdot B+ A \cdot B$ is equivalent to:$A + B$$A \cdot B$$A \oplus B$$A \cdot B + A' B'$

How many Flip-Flops are required for mod –$16$ counter?$5$$6$$3$$4$

What is the binary equivalent of the decimal number $368$?$101110000$$110110000$$111010000$$111100000$

The inputs of a NAND gate are connected together. The resulting circuit is ______.an OR gatean AND gatea NOT gateNone of the above

A minimum sum-of-products expression of the function $F(w, x, y,z) = \Sigma m ( 0, 2, 5, 8, 10, 13, 14 )$ using Karnaugh map is:$x'z+xy+yxz$$x'z' + xy'z + wyz'$$x'z' + xy...