Skip to main content

Logic Gates(लॉजिक गेट्स )


Logic Gates(लॉजिक गेट्स )

o    The logic gates are the main structural part of a digital system.
o    Logic Gates are a block of hardware that produces signals of binary 1 or 0 when input logic requirements are satisfied.
o    Each gate has a distinct graphic symbol, and its operation can be described by means of algebraic expressions.
o    The seven basic logic gates includes: AND, OR, XOR, NOT, NAND, NOR, and XNOR.
o    The relationship between the input-output binary variables for each gate can be represented in tabular form by a truth table.
o    Each gate has one or two binary input variables designated by A and B and one binary output variable designated by x.

AND GATE:(एंड गेट )

The AND gate is an electronic circuit which gives a high output only if all its inputs are high. The AND operation is represented by a dot (.) sign.



OR GATE:(ओर  गेट )
The OR gate is an electronic circuit which gives a high output if one or more of its inputs are high. The operation performed by an OR gate is represented by a plus (+) sign.



NOT GATE:(नॉट गेट )

The NOT gate is an electronic circuit which produces an inverted version of the input at its output. It is also known as an Inverter.



NAND GATE:(नैनेड  गेट )

The NOT-AND (NAND) gate which is equal to an AND gate followed by a NOT gate. The NAND gate gives a high output if any of the inputs are low. The NAND gate is represented by a AND gate with a small circle on the output. The small circle represents inversion.
















NOR GATE:(नार गेट )

The NOT-OR (NOR) gate which is equal to an OR gate followed by a NOT gate. The NOR gate gives a low output if any of the inputs are high. The NOR gate is represented by an OR gate with a small circle on the output. The small circle represents inversion.















Exclusive-OR/ XOR GATE:(एक्सक्लूसिव गेट )

The 'Exclusive-OR' gate is a circuit which will give a high output if one of its inputs is high but not both of them. The XOR operation is represented by an encircled plus sign.














EXCLUSIVE-NOR/Equivalence GATE:

The 'Exclusive-NOR' gate is a circuit that does the inverse operation to the XOR gate. It will give a low output if one of its inputs is high but not both of them. The small circle represents inversion.











Comments

Post a Comment

Popular posts from this blog

Memory Hierarchy

Memory Hierarchy A memory unit is an essential component in any digital computer since it is needed for storing programs and data. Typically, a memory unit can be classified into two categories: The memory unit that establishes direct communication with the CPU is called  Main Memory . The main memory is often referred to as RAM (Random Access Memory). The memory units that provide backup storage are called  Auxiliary Memory . For instance, magnetic disks and magnetic tapes are the most commonly used auxiliary memories. Apart from the basic classifications of a memory unit, the memory hierarchy consists all of the storage devices available in a computer system ranging from the slow but high-capacity auxiliary memory to relatively faster main memory. The following image illustrates the components in a typical memory hierarchy. Auxiliary Memory Auxiliary memory is known as the lowest-cost, highest-capacity and slowest-access storage in a computer system. Auxiliar
1 comment
Read more

Objective Question of Computer Networking

  1.    Choose the correct meaning of the Greek word ‘tele’ in       context of telecommunication. A.   Near B.   Far C.   Never D.   Always   2.    Find the correct term used for the standards that have       been legislated by an officially recognized body.    A.   De jure B.   De facto C.   User standards D.   Channel standards   3.    Which agency developed standards for physical       connection interfaces and electronic signaling       specifications?      A.    ISO B.    ITU C.    ANSI D.    EIA   4.     Find full form of ANSI. A.    American Network Signal Institute B.    American National Signal Institute C.    American National Standards Institute D.    American Network Standards Institute   5.    Select the correct option to complete the following       statement.       The __________ defines the characteristics of the       interface between the devices and the transmission       medium. A.    Transport layer
Post a Comment
Read more