1.to make circuit to be smaller hence less number of logic gate.
2.reduces propagation.
3.reduces error.
4.implementing the expression in circuit form.
For 2-input EX-OR gate, if one input is A, the other input is B, and the output is Y. Then the Boolean expression for EX-OR (XOR) function (gate) is Y=A⊕B The output Y is true if either input A or if input B is true, but not both.Y= ( (A and NOT B) or (NOT A and B) ) ;
An XNOR gate is a logic gate performing a Boolean logic XNOR operation, also known as an equivalence gate.
Next: Boolean Expressions Up: Universality of certain gates Previous: Universality of certain gates ContentsUsing NAND gatesNOTFigure 12.10: Realizing a NOT gate using a NAND gateOR The following statements are called DeMorgan's Theorems and can be easily verified and extended for more than two variables.(12.1)(12.2)(12.3)(12.4)In general: (12.5)Thus :(12.6)Now it is easy to see that , which can be checked from the truth table easily. The resulting realization of OR gate is shown in 12.11Figure 12.11: Realization of OR gate by NAND gatesAND gateFigure 12.12: Realization of AND gate by NAND gatesX-OR gate(12.7)Clearly, this can be implemented using AND, NOT and OR gates, and hence can be implemented using universal gates.Figure 12.13: X-OR gateX-NOR gate(12.8)Again, this can be implemented using AND, NOT and OR gates, and hence can be implemented using universal gates, i.e., NAND or NOR gates.Figure 12.14: X-NOR gateNext: Boolean Expressions Up: Universality of certain gates Previous: Universality of certain gates Contentsynsingh 2007-07-25
This question really needs a little more context, but an attempt would be: 1: Properties common to both NAND and NOR gates: - they are both electronic logic circuits (as implied by the term "Gate") - they both compute a primitive single valued Boolean function of two or more input terms - they both implement the inverted output version of their primitive (the leading 'N') - there are no families of logic components that implement one and not the other in their catalog 2: differences: - the NAND output is TRUE iff any of its inputs are FALSE - the NOR output is FALSE iff any of its inputs are TRUE - the NAND circuit is much simpler to implement than NOR (NB: the term 'iff' means 'if and only if' - it is not a typo)
Xor gates are a type of logical gate that returns true if both of the two inputs aretwo different Boolean (true/false) values. The xor gate is also called an "exclusive or" gate because one input has to be true to return true, but not both. Here is a table of input values and return values for an xor gate.Inputs | Return Value (Output)true and true | falsetrue and false | truefalse and true | truefalse and false | false
De Morgan's theorem is used to help simplify Boolean Expressions. Digital Circuits can be simplified by the application of this theorem.
Boolean algebra is a mathematical structure that deals with binary variables and logic operations. It is used to represent and manipulate logical expressions and truth values. Boolean algebra is especially important in computer science and digital logic design, where it is used for constructing circuits, Boolean functions, and making logical decisions.
demorganization is used to reduce the Boolean expressions
Boolean minimization is advantageous because it helps reduce the complexity of logical expressions. By simplifying Boolean expressions, it improves the efficiency of digital circuits, reduces the number of gates required, and minimizes power consumption. Additionally, Boolean minimization makes it easier to understand and analyze the behavior of logical systems.
When (both are true) OR (both are false).
Boolean algebra.
Chris A. Theodore has written: 'Boolean algebra and digital computers' -- subject(s): Algebra, Boolean, Boolean Algebra, Logic circuits
Yes.
these maps will help us to solve boolean expressions.
Boolean logic can be thought of as "0 and 1" logic, or "True or False" logic. Boolean math started out as "True or False" expressions. In computers, the bits stored in memory are interpreted as either a '0' or a '1' (binary numbers). Computer scientists (usually, though you can prove out the concept either way) map '0' = FALSE and '1' = 'TRUE', and thus the operations and decisions made in a computer can be expressed/evaluated as Boolean logic/math expressions.
these maps will help us to solve boolean expressions.
Boolean algebra generally deals with design of h/w circuits forms a basis of the computer scientists,since computers can understand only machine level language which is of zeros and one so understanding of boolean algebra is important i think.more over boolean algebra also deals with minimalization of the logic design which has considerably reduced the size of hardware so according to me each and every computer scientist shouldhave a basic understanding of boolean algebra.