The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B.

The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is 

(A) 4 (B) 6 (C) 8 (D) 10
by

1 Answer

Answer :

The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is 6

by

Related questions

The number of comparators required in a 3-bit comparator type analog to digital converter is

Description : The number of comparators required in a 3-bit comparator type analog to digital converter is  A) 2 B) 3 C) 7 D) 8 

Last Answer : Number of comparators =2^n -1= 2^3 -1=7

The number of comparators required in a 4 bit comparator type ADC is

Description : The number of comparators required in a 4 bit comparator type ADC is (A) 16 (B) 15 (C) 17 (D) 12

Last Answer : The number of comparators required in a 4 bit comparator type ADC is 15

In successive approximation converter input to the comparator is through

Description : In successive approximation converter input to the comparator is through (A) DAC (B) Latch (C) Flip-flop (D) Sample and hold circuit

Last Answer : In successive approximation converter input to the comparator is through DAC 

When A = 0., B = 0, C = 1 then in two input logic gate we get gate

Description :  When A = 0., B = 0, C = 1 then in two input logic gate we get gate  (A) XOR gate (B) AND gate (C) NAND gate (D) NOR gate

Last Answer :  When A = 0., B = 0, C = 1 then in two input logic gate we get gate NAND gate

What does a lighted LED indicate on a logic comparator?

Description : What does a lighted LED indicate on a logic comparator?

Last Answer : A difference in logic states between the reference IC and the IC under test.

Determine the output frequency for a frequency division circuit that contains 12 flip–flops with an input

Description : Determine the output frequency for a frequency division circuit that contains 12 flip–flops with an input clock frequency of 20.48 MHz: (1) 10.24 kHz (2) 5 kHz (3) 30.24 kHz (4) 15 kHz 

Last Answer : Determine the output frequency for a frequency division circuit that contains 12 flip–flops with an input clock frequency of 20.48 MHz: 5 kHz

The output of an exclusive–NOR gate is 1. Which input combination is correct?

Description : The output of an exclusive–NOR gate is 1. Which input combination is correct? (1) A = 1, B = 0 (2) A = 0, B = 1 (3) A = 0, B = 0 (4) None of these 

Last Answer : The output of an exclusive–NOR gate is 1. Which input combination is correct? (1) A = 1, B = 0 (2) A = 0, B = 1 (3) A = 0, B = 0 (4) None of these 

The output of a 2-input NAND gate with high at both the inputs will be

Description : The output of a 2-input NAND gate with high at both the inputs will be • High • Low • High & low • None of the above.

Last Answer : The output of a 2-input NAND gate with high at both the inputs will be Low

Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Description : Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Last Answer : Digital comparator is a combinational circuit which compares two numbers, A and B; and evaluates their relative magnitudes. The outcome of the comparison is given by three binary variables which indicate whether A ... Depending on the result of comparison one of these outputs will go high.

One input terminal of high gain comparator circuit is grounded and a ...

Description : One input terminal of high gain comparator circuit is grounded and a sinusoidal voltage is applied to the other input. The output of comparator will be___________.

Last Answer : One input terminal of high gain comparator circuit is grounded and a sinusoidal voltage is applied to the other input. The output of comparator will be a square wave.

For the circuit shown in figure, the Boolean expression for the output y in terms of inputs P, Q, R and S is

Description : For the circuit shown in figure, the Boolean expression for the output y in terms of inputs P, Q, R and S is

Last Answer : For the circuit shown in figure, the Boolean expression for the output y in terms of inputs P, Q, R and S is P+Q+R+S

Central Processing Unit is combination of A) Control and storage B) Control and output unit C) Arithmetic logic and input unit D) Arithmetic logic and control unit

Description : Central Processing Unit is combination of A) Control and storage B) Control and output unit C) Arithmetic logic and input unit D) Arithmetic logic and control unit

Last Answer : Answer : D

The central processing unit (CPU) consists of A) Input, output and processing B) Control unit, primary storage, and secondary storage C) Control unit, arithmetic-logic unit and primary storage D) Control unit, processing, and primary storage

Description : The central processing unit (CPU) consists of A) Input, output and processing B) Control unit, primary storage, and secondary storage C) Control unit, arithmetic-logic unit and primary storage D) Control unit, processing, and primary storage

Last Answer : Answer : C

A micropocessor consists of: a) Arithmetic Logic Unit (ALU) b) Memories c) Input / Output devices d) All the above

Description : A micropocessor consists of: a) Arithmetic Logic Unit (ALU) b) Memories c) Input / Output devices d) All the above

Last Answer : Ans: A

Which unit is responsible for converting the data received from the user into computer understandable format? a) Memory Unit b) Arithmetic & Logic Unit c) Input Unit d) Output Unit

Description : Which unit is responsible for converting the data received from the user into computer understandable format? a) Memory Unit b) Arithmetic & Logic Unit c) Input Unit d) Output Unit

Last Answer : Answer: c Explanation: The Input Unit converts the data, which the user enters into a language which the computer understands, i.e. it converts the data into binary format. The ... after immediate results of processing whereas; the ALU is responsible for various arithmetic and bitwise operations

One method of troubleshooting digital circuits in a console is to ___________. A. supply alternate logic levels at the input(s) and test for change of state conditions at the output B. ground all inputs and test for a logic '1' at the output C. open all inputs and test for a logic '0' at the output D. vary each input smoothly from 0-10 volts and test for similar variance at the output

Description : One method of troubleshooting digital circuits in a console is to ___________. A. supply alternate logic levels at the input(s) and test for change of state conditions at the output B. ground all ... output D. vary each input smoothly from 0-10 volts and test for similar variance at the output

Last Answer : Answer: A

The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Description : The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Last Answer : Control unit, arithmetic-logic unit and primary storage

The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Description : The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Last Answer : Control unit, arithmetic-logic unit and primary storage

Central Processing Unit is combination of a. Control and storage b. Control and output unit c. Arithmetic logic and input unit d. Arithmetic logic and control unit

Description : Central Processing Unit is combination of a. Control and storage b. Control and output unit c. Arithmetic logic and input unit d. Arithmetic logic and control unit

Last Answer : Arithmetic logic and control unit

A two-input X-OR gate will produce a HIGH output when the inputs are at what logic levels?

Description : A two-input X-OR gate will produce a HIGH output when the inputs are at what logic levels?

Last Answer : . One or the other of the inputs must be HIGH, but not both at the same time.

The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Description : The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Last Answer : c. Control unit, arithmetic-logic unit and primary storage

Central Processing Unit is combination of a. Control and storage b. Control and output unit c. Arithmetic logic and input unit d. Arithmetic logic and control unit

Description : Central Processing Unit is combination of a. Control and storage b. Control and output unit c. Arithmetic logic and input unit d. Arithmetic logic and control unit

Last Answer : d. Arithmetic logic and control unit

The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Description : The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Last Answer : c. Control unit, arithmetic-logic unit and primary storage

An aspect of Input/Output controller of data logic is called (1) General Buffering (2) Zero Buffering (3) Buffering (4) Data Buffering

Description : An aspect of Input/Output controller of data logic is called (1) General Buffering (2) Zero Buffering (3) Buffering (4) Data Buffering

Last Answer : Buffering

The basic logic gate whose output is the complement of the input is the: -

Description : The basic logic gate whose output is the complement of the input is the: - a) OR gate b) AND gate c) inverter d) comparator

Last Answer : The basic logic gate whose output is the complement of the input is the: -  inverter

Define following terms related to logic families : (i) Noise Margin (ii) FAN-OUT (iii) Propagation delay (iv) Power dissipation

Description : Define following terms related to logic families : (i) Noise Margin (ii) FAN-OUT (iii) Propagation delay (iv) Power dissipation

Last Answer : i) Noise immunity is measured in terms of noise margin. High state Noise margin = VNH = VOH(min) - VIH(min) Low state Noise margin = VNL = VIL(max) - VOL(max) i) The fan-out is defined as the ... logical 0 state (HIGH to LOW) iii) Average power dissipation is defined as PD(avg) = ICC(avg) * VCC

Which one of the following logic circuit has the highest speed as compared to the currently available logic

Description : Which one of the following logic circuit has the highest speed as compared to the currently available logic circuits? A) Resistance-transistor logic B) Emitter-coupled logic C) Integrated-injection logic D) Diode-transistor logic 

Last Answer : Which one of the following logic circuit has the highest speed as compared to the currently available logic circuits? A) Resistance-transistor logic B) Emitter-coupled logic C) Integrated-injection logic D) Diode-transistor logic 

The current mode logic (CML) is same as

Description : The current mode logic (CML) is same as A) LSI B) CMOS C) TTL D) ECL

Last Answer : The current mode logic (CML) is same as ECL

The following logic families have their propagation delay. Arrange them from lowest propagation delay to

Description : The following logic families have their propagation delay. Arrange them from lowest propagation delay to highest propagation delay. 1. TTL (Standard) 2. ECL 3. Low power CMOS 4. DTL (A) 2, 1, 4 and 3 (B) 2, 4, 1 and 3 (C) 4, 2, 3 and 1 (D) 1, 2, 3 and 4

Last Answer : The following logic families have their propagation delay. Arrange them from lowest propagation delay to highest propagation delay. 1. TTL (Standard) 2. ECL 3. Low power CMOS 4. DTL (A) 2, 1, 4 and 3 (B) 2, 4, 1 and 3 (C) 4, 2, 3 and 1 (D) 1, 2, 3 and 4

Read the following statements: i. Gate is a combinational logic. ii. JK Flip-flop in toggle mode is not

Description : Read the following statements: i. Gate is a combinational logic. ii. JK Flip-flop in toggle mode is not combinational logic. iii. MSJK Flip-flop suffers from race-around. iv. Counters are sequential circuits. Which choice is correct? (A) i, ii (B) i, ii, iv (C) ii, iii, iv (D) i, ii, iii

Last Answer : Read the following statements: i. Gate is a combinational logic. ii. JK Flip-flop in toggle mode is not combinational logic. iii. MSJK Flip-flop suffers from race-around. iv. Counters are sequential circuits. Which choice is ... (A) i, ii (B) i, ii, iv (C) ii, iii, iv (D) i, ii, iii

The complete set of only those Logic Gates designated as Universal Gates is

Description : The complete set of only those Logic Gates designated as Universal Gates is  (A) NOT, OR and AND Gates (B) XNOR, NOR and NAND Gates (C) NOR and NAND Gates (D) XOR, NOR and NAND Gates

Last Answer : The complete set of only those Logic Gates designated as Universal Gates is NOR and NAND Gates

Logic state 0 in positive logic corresponds to

Description : Logic state 0 in positive logic corresponds to   1. zero voltage 2. positive voltage 3.higher voltage level 4. lower voltage level 

Last Answer : Logic state 0 in positive logic corresponds to lower voltage level 

Which of the following circuits come under the class of sequential logic circuits ?

Description : Which of the following circuits come under the class of sequential logic circuits ?   P. Full adder   Q. Full subtractor   R. Half adder   S. JK flip   T. Counter   Select the correct answer from the codes given below: (a) P and Q (b) Q and R (c) R and S (d) S and T

Last Answer : Which of the following circuits come under the class of sequential logic circuits ?   P. Full adder   Q. Full subtractor   R. Half adder   S. JK flip   T. Counter   Select the correct answer from the codes given below: (a) P and Q (b) Q and R (c) R and S (d) S and T

What is not true in the context of “Don’t Care Condition” in digital logic ?

Description : What is not true in the context of “Don’t Care Condition” in digital logic ? (A) It corresponds to combination of logic variables whose value is not defined (B) It can be assumed to be 0 or 1 (C) It can be assumed to be 1 only (D) It helps in simplification of logic function

Last Answer : What is not true in the context of “Don’t Care Condition” in digital logic ? (A) It corresponds to combination of logic variables whose value is not defined (B) It can be assumed to be 0 or 1 (C) It can be assumed to be 1 only (D) It helps in simplification of logic function

Which of the following gates can be used to realize all possible combinational logic functions?

Description : Which of the following gates can be used to realize all possible combinational logic functions?  (i) OR gate (ii) NOR gate (iii) Exclusive OR gate (iv) NAND gate (v) AND gate  (A) (iii), (iv) and (v)  (B) (i), (iii) and (iv)  (C) (ii) and (iv)  (D) (i) and (v)

Last Answer : Which of the following gates can be used to realize all possible combinational logic functions?  (i) OR gate (ii) NOR gate (iii) Exclusive OR gate (iv) NAND gate (v) AND gate  (A) (iii), (iv) and (v)  (B) (i), (iii) and (iv)  (C) (ii) and (iv)  (D) (i) and (v)

Among the logic families, the family which can be used at very high ...

Description : Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

Last Answer : Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is ECL.

Positive logic in a logic circuit is one in which

Last Answer : Positive logic in a logic circuit is one in which logic 0 voltage level is lower than logic 1 voltage level.

A NAND gate is called a universal logic element because

Last Answer : A NAND gate is called a universal logic element because any logic function can be realized by NAND gates alone.

A bit-stuffing based framing protocol uses an 8-bit delimiter pattern of 01111110. If the output bit-string after stuffing is 01111100101, then the input bit-string is a. 0111110100 b. 0111110101 c. 0111111101 d. 0111111111

Description : A bit-stuffing based framing protocol uses an 8-bit delimiter pattern of 01111110. If the output bit-string after stuffing is 01111100101, then the input bit-string is a. 0111110100 b. 0111110101 c. 0111111101 d. 0111111111

Last Answer : b. 0111110101

The size of the ROM required to build an 8-bit adder/subtractor with mode control, carry input, carry output and two’s complement overflow output is given as

Description : The size of the ROM required to build an 8-bit adder/subtractor with mode control, carry input, carry output and two’s complement overflow output is given as

Last Answer : (B) 218 × 10

A 4 bit counter is used to count from 0,1,2...n. Value of “n” is

Description : A 4 bit counter is used to count from 0,1,2...n. Value of “n” is

Last Answer : A 4 bit counter is used to count from 0,1,2...n. Value of “n” is 15

Parity bit check is used to

Description : Parity bit check is used to

Last Answer : Parity bit check is used to Detect 1 bit error

In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor

Description : In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor value corresponding to MSB will be (A) 0.4 kΩ (B) 3 kΩ (C) 2.8 kΩ (D) 2.5 kΩ

Last Answer : In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor value corresponding to MSB will be 2.5 kΩ 

Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, ...

Description : Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is

Last Answer : Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is 12CPS.

Consider the representation of six-bit numbers by two’s complement,...

Description : Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000?

Last Answer : Two’s complement, Sign and magnitude and one’s complement, Two’s complement and one’s complement

A six-bit alpha-numeric code is able to code?

Last Answer : A six-bit alpha-numeric code is able to code 64 characters.

A four bit number is given as 0110. Its 2’s complement is

Last Answer : A four bit number is given as 0110. Its 2’s complement is 1010.

How many minimum number of NOR gates are required to realize a two-input X-OR gate?

Description : How many minimum number of NOR gates are required to realize a two-input X-OR gate?

Last Answer : 5

IC which has quad 2 input AND gates

Description : IC which has quad 2 input AND gates   (A) 7411 (B) 7404 (C)7400 (D) 7408

Last Answer : IC which has quad 2 input AND gates 7408

The o/p of a 2 - input OR gate is 1 when its

Description : The o/p of a 2 - input OR gate is 1 when its   1. both inputs are 1 2. both inputs are 0 3.either input is 1 4. either input is 0 

Last Answer : The o/p of a 2 - input OR gate is 1 when its either input is 1