What is an adder ?

What is an adder ?
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1 Answer

Answer :

The cooperative circuit with which the addition is done is called adder.
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Related questions

Are adder omnivore?

Description : Are adder omnivore?

Last Answer : The one native poisonous British snake is the Common European viper (Vipera berus). Commonly known in Britain as the Adder, it is a carnivore.

What category are cobra lizard adder and copra called?

Description : What category are cobra lizard adder and copra called?

Last Answer : Feel Free to Answer

Define Half adder and full adder

Description : Define Half adder and full adder

Last Answer : The logic circuit that performs the addition of two bits is a half adder. The circuit that performs the addition of three bits is a full adder.

Data transfers are done using: a. Multiplexer switching b. Demultiplexer switching c. Adder switching d. Subtractor switching

Description : Data transfers are done using: a. Multiplexer switching b. Demultiplexer switching c. Adder switching d. Subtractor switching

Last Answer : a. Multiplexer switching

In RISC architecture access to registers is made as a block and register file in a particular register can be selected by using: a. Multiplexer b. Decoder c. Subtractor d. Adder

Description : In RISC architecture access to registers is made as a block and register file in a particular register can be selected by using: a. Multiplexer b. Decoder c. Subtractor d. Adder

Last Answer : b. Decoder

What type of logic gates are added to a parallel adder to enable it to subtract?

Description : What type of logic gates are added to a parallel adder to enable it to subtract?

Last Answer : X-OR gates.

What type of adder is used to handle a carry from a previous circuit?

Description : What type of adder is used to handle a carry from a previous circuit?

Last Answer : Full adder.

. What will be the output of a half adder when both inputs are 1s?

Description : . What will be the output of a half adder when both inputs are 1s?

Last Answer : Sum equals 0 with a carry of 1.

An X-OR gate may be used as what type of adder?

Description : An X-OR gate may be used as what type of adder?

Last Answer : Quarter adder.

What advantage does a half adder have over a quarter adder?

Description : What advantage does a half adder have over a quarter adder?

Last Answer : The half adder generates a carry.

What is the difference between a summing amplifier and an adder circuit?

Description : What is the difference between a summing amplifier and an adder circuit?

Last Answer : The adder simply adds the input signals together while the summing amplifier multiplies the sum of the input signals by the gain of circuit.

Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier. a. Circuit A has more gates than circuit B b. Circuit B has more gates than circuit A c. Circuit A has the same number of gates as circuit B

Description : Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier. a. Circuit A has more gates than circuit B b. Circuit B has more gates than circuit A c. Circuit A has the same number of gates as circuit B

Last Answer : a. Circuit A has more gates than circuit

Define half adder and full adder

Description : Define half adder and full adder

Last Answer : The logic circuit that performs the addition of two bits is a half adder. The circuit that performs the addition of three bits is a full adder.

What is a carry look-ahead adder?

Description : What is a carry look-ahead adder?

Last Answer : The input carry needed by a stage is directly computed from carry signals obtained from all the preceding stages i-1,i-2,.....0, rather than waiting for normal carries to supply slowly from stage to stage. An adder that uses this principle is a called carry look-ahead adder.

A full adder logic circuit will have (A) Two inputs and one output. (B) Three inputs and three outputs. (C) Two inputs and two outputs. (D) Three inputs and two outputs.

Description : A full adder logic circuit will have (A) Two inputs and one output. (B) Three inputs and three outputs. (C) Two inputs and two outputs. (D) Three inputs and two outputs.

Last Answer : Ans: D A full adder circuit will add two bits and it will also accounts the carry input generated in the previous stage. Thus three inputs and two outputs (Sum and Carry) are there.

The gates required to build a half adder are (A) EX-OR gate and NOR gate (B) EX-OR gate and OR gate (C) EX-OR gate and AND gate (D) Four NAND gates.

Description : The gates required to build a half adder are (A) EX-OR gate and NOR gate (B) EX-OR gate and OR gate (C) EX-OR gate and AND gate (D) Four NAND gates.

Last Answer : (C) EX-OR gate and AND gate

The correction to be applied in decimal adder to the generated sum is (A) 00101 (B) 00110 (C) 01101 (D) 01010

Description : The correction to be applied in decimal adder to the generated sum is (A) 00101 (B) 00110 (C) 01101 (D) 01010

Last Answer : Ans: B The correction to be applied in decimal adder to the generated sum is 00110. When the four bit sum is more than 9 then the sum is invalid. In such cases, add +6(i.e. 0110) to the ... the six invalid states. If a carry is generated when adding 6, add the carry to the next four bit group .

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

The BCD adder to add two decimal digits needs minimum of (A) 6 full adders and 2 half adders (B) 5 full adders and 3 half adders (C) 4 full adders and 3 half adders (D) 5 full adders and 2 half adders

Description : The BCD adder to add two decimal digits needs minimum of (A) 6 full adders and 2 half adders (B) 5 full adders and 3 half adders (C) 4 full adders and 3 half adders (D) 5 full adders and 2 half adders

Last Answer : (D) 5 full adders and 2 half adders

Consider a full-adder with the following input values: (a) x=1, y=0 and Ci(carry input) = 0 (b) x=0, y=1 and Ci = 1 Compute the values of S(sum) and C0 (carry output) for the above input values. (A) S=1 , C0= 0 and S=0 , C0= 1 (B) S=0 , C0= 0 and S=1 , C0= 1 (C) S=1 , C0= 1 and S=0 , C0= 0 (D) S=0 , C0= 1 and S=1 , C0= 0

Description : Consider a full-adder with the following input values: (a) x=1, y=0 and Ci(carry input) = 0 (b) x=0, y=1 and Ci = 1 Compute the values of S(sum) and C0 (carry output) for the above input values. (A) S=1 , C0= 0 and ... C0= 1 (C) S=1 , C0= 1 and S=0 , C0= 0 (D) S=0 , C0= 1 and S=1 , C0= 0

Last Answer : (A) S=1 , C0= 0 and S=0 , C0= 1

Which of the following is a sequential circuit? (A) Multiplexer (B) Decoder (C) Counter (D) Full adder

Description : Which of the following is a sequential circuit? (A) Multiplexer (B) Decoder (C) Counter (D) Full adder

Last Answer : (C) Counter

Describe how Op-Amp is used as adder using circuit diagram and output voltage equation.

Description : Describe how Op-Amp is used as adder using circuit diagram and output voltage equation.

Last Answer : Summing Amplifier Circuit In this simple summing amplifier circuit, the output voltage, ( Vout ) now becomes proportional to the sum of the input voltages, V1, V2, V3, etc. Then we can ... to the non-inverting input of the op-amp, it will produce the positive sum of the input voltages.

A half adder can be constructed from

Description : A half adder can be constructed from

Last Answer : A half adder can be constructed from One XOR gate and one 'AND‘ gate with their input connected in parallel

A full adder is a combinational circuit that performs the arithmetic sum of three input bits and produces a

Description : A full adder is a combinational circuit that performs the arithmetic sum of three input bits and produces a (a) sum output (b) sum output and a carry (c) sum output with two carries (d) two sums with two carries

Last Answer : A full adder us an a combination logical circuit which will produces an sum and carry when ever more than two inputs were given.

The fast carry or look-ahead carry circuits found in most 4-bit parallel-adder circuits:

Description : The fast carry or look-ahead carry circuits found in most 4-bit parallel-adder circuits:  (1) Increase ripple delay (2) Add a 1 to complemented inputs (3) Reduce propagation delay (4) Determine sign and magnitude

Last Answer : The fast carry or look-ahead carry circuits found in most 4-bit parallel-adder circuits: Reduce propagation delay.