All these years, people were using a trusted middleman such as a bank to make a transaction. But blockchain allows consumers and suppliers to transact directly, removing the need for a third party. Block chains provide “digital ledger” of transactions that everyone on the network can see. This is achieved through cryptography. “network” is fundamentally a chain of computers that must all approve an exchange before it can be verified and recorded. Why is it so different? The technology can work for almost every type of transaction involving value, including goods, money and property. Its potential uses are almost boundless: from collecting taxes to enabling migrants to send money back to family in countries where banking is hard. Blockchain can reduce frauds as every transaction w
Have you ever wondered who creates bitcoins? The answer is that it is “mined” into existence. Bitcoin mining facilitates both adding to transactions to the block chain and to release new Bitcoin. The mining process involves amassing recent transactions into blocks and trying to solve a computationally difficult puzzle. The first member who solves the puzzle gets to place the next block on the block chain and claim the rewards. The puzzle-cracker is incentivized by the transaction fees (paid to the miner in the form of Bitcoin) as well as the newly released Bitcoin. Security of the Bitcoin Network Bitcoin mining is decentralized, ie it doesn’t have any centralized authority to regulate it. Anyone with the proper hardware and an internet connection can participate. Any decisions pertai
Bitcoins are virtual money. it's a type of currency that allows people to buy goods and services and exchange money without involving banks, credit card issuers or other third parties. It is an electronic or digital currency that is decentralized and has no central authority controlling it. It can be sent from one person to another, but without a central bank or the government trying to track it. While no one authority controls the generation of the coins or tracks them, the system that hinge on cryptography is designed in such a way that the network maintains a foolproof system to record every transaction as well as tracking issuance of the currency. You can be as sure of the payment as you would on receiving physical currency notes, with the same anonymity ascribed to it but the transac...
While June saw a plethora of smartphone launches, a good number of devices are already lined up for release in July 2017. Talismanian picks the most exciting devices to look out for in the next month. Nokia 5 Simultaneous launch of Nokia 3, 5, and 6 has been announce by HMD Global. While Nokia 3 is already available in the market, the Nokia 5 will be available in July. Valued at Rs 12,899, the Nokia 5 has a 5.2-inch HD display in an aluminium 6000 series body. It runs stock Android 7.1 on a Qualcomm Snapdragon 430 processor, 16GB storage, 2GB RAM and a 3,000 mAh battery. It has a 13MP rear camera with f2.0 aperture, dual LED flash and phase detection autofocus and a 8MP selfie shooter on the front. It also has a fingerprint scanner, dual SIM slots, Wi-Fi, Bluetooth 4.1, NFC an
Apple Inc's iPhone turns 10 this year, evoking memories of a starry start for the device that ended up doing most to start the smartphone revolution and stirring interest in where it will go from here. iPhones since June 29, 2007, Apple has sold more than 1 billion but the first iPhone, which launched without an App Store and was restricted to the AT&T Inc network, was limited compared to today's version. After sluggish initial sales, Apple lowered the price to spur holiday sales that year. Even though Apple, led by CEO Steve Jobs, had already expanded beyond computers with the iPod, the very concept of the iPhone came as a surprise to some of Apple's suppliers a decade ago The iPhone hit its peak in 2008 when Apple introduced the App Store, which allowed developers to m
Before the bruises of wannacry dullen fully, worldwide infrastructure and business systems are experiencing the threat of a new wave of ransomware. The cyber-attack, carried out with an updated version of Petya, has not yet been stopped. The infected countries that includes India and their law enforcement authorities, in close contact with Europol is actively monitoring the spread of the ransomware. Early this week, Europol's executive director Rob Wainwright announced the ransomware attack that has global impact and told that while this attack had similarities with the WannaCry attack, there are clear hints of a more sophisticated attack capability. How does Petya work? Apart from encrypting files, Petya also overwrites the Master Boot Record. This makes the machine unusable and
-Shreeja Prashanth It is estimated that India’s digital payment system will reach $500 billion by 2020. To about 15% of India’s GDP will be contributed by it. Multiple factors like enhanced internet connectivity, penetration of smartphones, better awareness and education are fueling India’s shift towards cashless economy. Government initiatives such as ‘Digital India’ chiefly act as key catalysts for this change. Most of us think that this Shift in Digital Payment Landscape occurred only after the government’s demonetization declaration in December 2016. But it is interesting to note that the decline in cash transactions was tracked way back from 2010. In 2010, the percentage of cash in all payments was 89% compared with 78% in 2015. This rapid decline can be consid