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Category Archives: Digital Electronics & Logic Design

Implementation of Half Adder using NAND gates : Total 5 NAND gates are required to implement half adder. Implementation of Half Adder using NOR gates… Read More
Full Adder is the adder that adds three inputs and produces two outputs. The first two inputs are A and B and the third input… Read More
It is a combinational circuit which have many data inputs and single output depending on control or select inputs.​ For N input lines, log n… Read More
Steps to solve a problem: 1. Draw the state diagram from the problem statement or from the given state table. Example: Serial Adder. The functioning… Read More
1. To convert the floating point into decimal, we have 3 elements in a 32-bit floating point representation:     i) Sign     ii) Exponent    … Read More
Electronic and Digital systems may use a variety of different number systems, (e.g. Decimal, Hexadecimal, Octal, Binary).  A number N in base or radix b… Read More
Flip-flop is a circuit that maintains a state until directed by input to change the state. A basic flip-flop can be constructed using four-NAND or… Read More
See Last Minute Notes on all subjects here. We will discuss the important key points useful for GATE exams in summarized form. For details you… Read More
Digital Electronics Half Adder Half Subtractor K-Map Counters Computer Organisation and Architecture Machine Instructions What’s difference between 1’s Complement and 2’s Complement? Addressing Modes Cache… Read More
A Counter is a device which stores (and sometimes displays) the number of times a particular event or process has occurred, often in relationship to… Read More
In many digital circuits and practical problems we need to find expression with minimum variables. We can minimize Boolean expressions of 3, 4 variables very… Read More
Half Subtractor (HS): Half subtractor is a combination circuit with two inputs and two outputs which is difference and borrow. It produces the difference between… Read More
Half Adder (HA): Half adder is the simplest of all adder circuits. Half adder is a combinational arithmetic circuit that adds two numbers and produces… Read More
There are posts on representation of floating point format. The objective of this article is to provide a brief introduction to floating point format.  The… Read More

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