What is Quantum Computing?

Today's computers which are named as classical computers, work by manipulating sequence of bits. A bit is the smallest unit of data in a classical computer which has single binary value, either 0 or 1. A quantum computer is worked by manipulating sequence of qubits. But a qubit is not limited to two values. A single qubit can represent 1 or 0 or any quantum superposition of 0 and 1.

What is Microservices Architecture?

Since everything changes in the digital world, software applications developing techniques are also changing day by day. Microservices Architecture is a software development method which is a variant of the service-oriented architecture (SOA) architectural style.

What is Docker?

“ It works on your computer. So why is it not working on my computer? ”

 This is a familiar problem with all computer users. Is there a way to solve this problem? Yes. Have you heard about Docker? Docker is the world’s leading software container platform which supports to eliminate this problem. Let’s get to know about Docker.

What is failure detection and failure masking in distributed system ?

A distributed system

Is a model in which components located on networked computers communicate and coordinate their actions by passing messages. The components interact with each other in order to achieve a common goal. 

Let's create 8 bit LED binary counter

Here, I am going to discuss how to create 8 bit LED binary counter using Arduino micro controller board . This binary counter  displays  decimal numbers from 0 to 255 in 8 bit binary format using 8 LEDs, where as 1 is represented by lighting only left most  (2)  LED.Number  representation will be increased from 0 to 255 automatically .

Following figure shows several lighting patterns according to the decimal value from 0 to 7.

How to install eclipse juno IDE in ubuntu 16.04 ?

Are you tired of trying to install eclipse IDE in ubuntu 16.04 ? You don’t have to worry about that moreover. In this article, I am going to describe how to install Eclipse juno IDE(from Eclipse Juno SR2 Packages, that has developed for Java EE Developers) in ubuntu 16.04.Eclipse is an integrated development environment (IDE) used in computer programming, and is the most widely used Java IDE.

How to install Apache Maven & Apache Hadoop in Ubuntu 16.04

In this article I  am going to discuss how to setup Maven and Hadoop. The steps for all two frameworks are always the same:

                    1.Decompress the archive

                    2.Add the correct console variable

                    3.Test the correctness of the installation

1. 1 Download Latest Maven binaries from apache site

First you have to go apache site using this link

How to install java in Ubuntu 16.04 using the terminal

In this article, I am going to describe how to install java in Ubuntu 16.04 using the terminal.

 

First I am going to add Oracle's PPA(Personal Package Archive) using terminal command.

You can open terminal easily by pressing Ctrl + Alt + t

Then type and enter below code.

         sudo add-apt-repository ppa:webupd8team/java            

After that update your package repository using this terminal command.

        sudo apt-get update

Necessary conditions for deadlocks in computing

Earlier I have described about deadlock in computing. In this article, I am going to discuss about  the necessary conditions, those hold simultaneously in a system to arise deadlock situation.

We can discuss these necessary conditions more precisely in terms of a directed graph called a system resource-allocation graph. So I used related  diagrams with description.

In this diagrams rounded rectangles visualize a resource and dots inside it visualize number of instances of the resource.Circles visualize processes.

Mutual Exclusion

In this scenario, there is a one resource(R1) with non-shareable mode. That means only one process can be used at a time. If another process requests that resource(P1), the requesting process(P1) must be wait until the resource has been released by first process(P2). 

What is deadlock in computing?

In a multi-programming environment, Processes want resources to do their corresponding process. When a process requests a resource and if it is not available at that instant, then the process enters to a waiting state. Sometimes this process can’t get out from the waiting state because the process has been hold by another process. This situation is called a deadlock. 

Let’s discuss this situation in detail.