This article is about NOR Logic in the sense of building other logic gates using just NOR gates. For NOR gates, see NOR gate. For NOR in the purely logical sense, see Logical NOR. For logic gates in general, see Logic gate.
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A single NOR gate
A NOR gate or a NOT OR gate is a logic gate which gives a positive output only when both inputs are negative.
Like NAND gates, NOR gates are so-called "universal gates" that can be combined to form any other kind of logic gate. For example, the first embedded system, the Apollo Guidance Computer, was built exclusively from NOR gates, about 5,600 in total for the later versions. Today, integrated circuits are not constructed exclusively from a single type of gate. Instead, EDA tools are used to convert the description of a logical circuit to a netlist of complex gates (standard cells) or transistors (full custom approach).
A NOR gate or a NOT OR gate is a logic gate which gives a positive output only when both inputs are negative. Like NAND gates, NOR gates are so-called...
The NOR gate is a digital logic gate that implements logical NOR - it behaves according to the truth table to the right. A HIGH output (1) results if both...
to the NOR function, and this is referred to as NORlogic. A NAND gate is an inverted AND gate. It has the following truth table: In CMOS logic, if both...
A logic gate is a device that performs a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output...
In Boolean logic, logical NOR, non-disjunction, or joint denial is a truth-functional operator which produces a result that is the negation of logical...
gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs...
(sometimes ENOR, EXNOR, NXOR, XAND and pronounced as Exclusive NOR) is a digital logic gate whose function is the logical complement of the Exclusive...
alpha-3 code: NOR) Logical NOR ("Not OR"), a binary operation in logicNOR gate, an electronic gate that implements a logical NORNORlogicNOR flash, a type...
"functional completeness". It shares this property with the NOR gate. Digital systems employing certain logic circuits take advantage of NAND's functional completeness...
assembled from either only binary NAND gates, or only binary NOR gates. Modern texts on logic typically take as primitive some subset of the connectives:...
film that neither serves drama norlogic." Kumar opined that the director uses Hitchcock's quote "Where drama begins logic ends" as an excuse "to make an...
the zero. As an example, here is a NOR gate implemented in schematic NMOS. If either input A or input B is high (logic 1, = True), the respective MOS transistor...
contains logic symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of logic symbols. In logic, a set...
OR, XOR, NAND, NOR, XNOR, and INH are two-input logic gates. The AND, OR, and XOR gates are fundamental logic gates, and the NAND, NOR, and XNOR gates...
NOR gates Wikimedia Commons has media related to AND gates. OR gate NOT gate NAND gate NOR gate XOR gate XNOR gate IMPLY gate Boolean algebra Logic gate...
branch of logic. It is also called propositional logic, statement logic, sentential calculus, sentential logic, or sometimes zeroth-order logic. It deals...
PMOS or pMOS logic (from p-channel metal–oxide–semiconductor) is a family of digital circuits based on p-channel, enhancement mode metal–oxide–semiconductor...
in the image below. Any logic gate can be made from a combination of NAND or NOR gates. With active low open collector logic outputs, as used for control...
Anything that is a process or procedure is business logic, and anything that is neither a process nor a procedure is a business rule. Welcoming a new visitor...
In logic, a logical connective (also called a logical operator, sentential connective, or sentential operator) is a logical constant. Connectives can...
The history of logic deals with the study of the development of the science of valid inference (logic). Formal logics developed in ancient times in India...
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