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Showing posts from September, 2018

Raspberry PI first run

ABC of Blockchain

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What is Blockchain Before I try to answer, what is Blockchain? Lets first look at what Blockchain is not. Blockchain is not Bitcoin, infact Bitcoin is an application of Blockchain. Blockchain is not just about financial data . Blockchain is not a product, instead Blockchain is a base fabric on which a variety of usefull applications can be developed. Blockchain is neither a replacement for traditional transaction processing systems nor a replacement for distributed database systems. In-fact for many simple transaction processing systems, using Blockchain is an overkill. Blockchain is not a replacement for secure messaging system. So what is it? In simple words, It is a distributed database/ledger of transactions' data, with the following properties: It's Shared . The data is open to every one and can be seen by everyone. It's Distributed . Everyone who has it, can add to it. It's Immutable . No one is allowed to change and delete any data in it. ...

Capturing Input and Controlling LEDs using Arduino UNO R3 Microcontroller

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