8085 Microprocessor
INTRODUCTION The most important technological invention of modern times is the “microprocessor”. A microprocessor is a multiple purpose programmable clock
Read More
Boolean Algebra
MULTIPLEXERS
MULTIPLEXERS Multiplexing means sharing. A digital multiplexer (MUX) is a combinational circuit that accepts several data inputs and allows only
Read MoreCODE CONVERTERS
The availability of a large variety of codes for the same discrete elements of information results in the use of
Read MoreADDERS AND SUBTRACTORS
Half Adder The half adder is an arithmetic circuit used to perform the addition of two single bits. The two
Read MoreCombinational and Sequential Circuits
INTRODUCTION A combinational circuit consists of an interconnection of logic gates, whose outputs at any instant of time are determined
Read MoreThe Exclusive NOR (EX-NOR) Gate
An EX-NOR gate is an EX-OR gate followed by NOT gate. The basic EX-NOR gate is a two input and
Read MoreThe Exclusive-OR Gate (EX-OR)
A basic EX-OR gate is a two input single output logic gate, whose output is assumed to be HIGH only
Read MoreThe NOR Gate
A NOR gate is a combination of OR gate and NOT gate. So we can say it is a NOT-OR
Read MoreThe NAND Gate
The NAND gate and NOR gate are called Universal gates because they can perform all the three basic functions of
Read MoreBasic Gates
The NOT Gate The NOT gate has a single input variable and a single output variable. The NOT operation is
Read MoreLOGIC GATES
Logic gates are the based building blocks of any digital system. They are usually constructed in LSI and VLSI circuits
Read MoreKarnaugh Map
KARNAUGH MAP The “Karnaugh map” is a graphical method which provides a systematic method for simplifying and manipulating the Boolean
Read MoreBOOLEAN ALGEBRAIC THEOREM
De Morgan’s Theorem These are very useful in simplifying expressions in which a product or sum of variables is inverted.
Read MoreLAWS OF BOOLEAN ALGEBRA
The Boolean algebra is governed by certain well developed rules and laws. Commutative Laws The commutative law allows change in
Read More