Recent questions tagged adder

How many inputs & outputs does a full adder have?$3, 2$$2, 3$$3, 3$$2, 2$

A $4-bit$ carry-lookahead adder adds two $4-bit$ numbers. The adder is designed only using $AND, OR, NOT, NAND $ and $NOR$ gates. We assume that all the inputs are availa...

Using binary full adders and other logic gates (if necessary), design an adder for adding $4$-bit number (including sign) in $2’s$ complement notation.

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.

Fill in the blanks:In the two bit full-adder/subtractor unit shown in below figure, when the switch is in position $2$ ___________ using _________ arithmetic.

Match the following :$\begin{array}{clcl} & \textbf{List-I} && \textbf{List-II} \\ \text{a.} & \text{Controlled inverter} & \text{i.} & \text{a circuit that can add 3 bi...

The $\text{BCD}$ adder to add two decimal digits needs minimum of$6$ full adders and $2$ half adders$5$ full adders and $3$ half adders$4$ full adders and $3$ half adders...

For a binary half-subtractor having two inputs $\text{A}$ and $\text{B}$, the correct set of logical outputs $\text{D}\;(=\text{A}\;\text{minus} \;\text{B})$ and $\text{X...

The circuit shown in the given figure is afull adderfull subtractershift registerdecade counter

Consider a carry look ahead adder for adding two $n$-bit integers, built using gates of fan-in at most two. The time to perform addition using this adder is$\Theta (1)$$\...

Consider an eight-bit ripple-carry adder for computing the sum of $A$ and $B$, where $A$ and $B$ are integers represented in $2$'s complement form. If the decimal value o...

If half adders and full adders are implements using gates, then for the addition of two $17$ bit numbers (using minimum gates) the number of half adders and full adders r...

Assume that only half adders are available in your laboratory. Show that any binary function can be implemented using half adders only.

An N-bit carry lookahead adder, where $N$ is a multiple of $4$, employs ICs $74181$ ($4$ bit ALU) and $74182$ ( $4$ bit carry lookahead generator).The minimum addition ti...

The number of full and half-adders required to add $16$-bit numbers is$8$ half-adders, $8$ full-adders$1$ half-adder, $15$ full-adders$16$ half-adders, $0$ full-adders$4$...

Given two three bit numbers $a_{2}a_{1}a_{0}$ and $b_{2}b_{1}b_{0}$ and $c$ the carry in, the function that represents the carry generate function when these two numbers ...

In a look-ahead carry generator, the carry generate function $G_i$ and the carry propagate function $P_i$ for inputs $A_i$ and $B_i$ are given by:$$P_i = A_i \oplus B_i \...

A 4-bit carry look ahead adder, which adds two 4-bit numbers, is designed using AND, OR, NOT, NAND, NOR gates only. Assuming that all the inputs are available in both com...