FOSS Geeks

You all may have know or have heard about Bitcoin or other cryptocurrencies names. Those all digital currencies are reference to Blockchain  Technology. Simply, Blockchain is a critical element of cryptocurrencies. Because without Blockchain, Bitcoin or other cryptocurrencies would not exist. Cryptocurrencies was a concept of the domain of cryptography and data structure in computer science. Merkle tree or hash tree is the primitive form of the Blockchain. Ralph Merkle introduced this data structure in 1979. A series of data records (a secured chain of blocks) was created using this Merkle tree and each connected to the one before it.  When we create a new record in this chain, that record would contain the history of the entire chain and that's how the Blockchain was created.  Distributed blockchain was intoduced by Satoshi Nakamato in 2008 and this was the backbone of Bitcoin. Let's try to undersatnd how blockchain works. Blockchain always keeps a rec...

I hope everyone heard about Linux Operating System before. Like other Operating Systems Linux also is made of many components. But here to get an Introduction to the Linux Shell Scripts, we need to know about its major/important components Kernel and Shell . We studied that Operating System is a software that manages computer Harware and provide an interface between Computer Hardware and Users/Softwares. Kernal is the component/program responsible for first task of an OS, that is managing computer Hardware. And Shell is the component/program responsible to provide the interface for the users/softwares with hardware. We can graphically get an idea of it as shown in following Image. Kernal and Shell of Linux OS Let's see about Linux Shell more in details. A shell is program which acts like an interpreter. It convert human readable commands received from input devices into something which kernel can understand. The shell starts to run when a user logs in or pr...

What is aframe?? Before i get this i like to ask from you, Did you ever have get a virtual reality? Someones are Yes! or Not!, Do you like to get that experience? So here it is. A-Frame is a web framework for building virtual reality (VR) experience. This web frame is an open source webframe work who can develop many things. It is primary maintained by Mozilla and WebVR community. But originally from Mozilla. A-Frame was developed to be an easy but powerful and easy way to develop VR content. As an open source project, A-Frame has grown to be one of the largest and most welcoming VR communities. A-Frame is based on top of HTML, simple to get started. But A-Frame is not just 3D scene graph or markup language. It is an entity component system framework for three.js  where developers can create 3D WebVR  scenes using HTML.  Nowadays HTML provides a familiar tool for web developers and designers while incorporating a popular game development pattern used by Game eng...