Tag: technology

In 3 steps, How BlockChain Technology works?

What is Blockchain Technology

The blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value.”

first major application of blockchain technology was bitcoin which was released in 2009. Bitcoin is a cryptocurrency and the blockchain is the technology that underpins it. A cryptocurrency refers to a digital coin that runs on a blockchain.

This is a huge part of why so many people believe blockchain technology is the future of currency, and why it is being adopted in industries other than cryptocurrency.

The blockchain behind bitcoin is a public ledger of every transaction that has taken place. It cannot be tampered with or changed retrospectively. Advocates of the technology say this makes Bitcoin transactions secure and safer than current systems.
It is not issued by a central authority.
There is a limit of 21 million.
Currently, just over 17 million are in circulation.
The first transaction using bitcoin is widely believed to be carried out by a programmer named Laszlo Hanyecz, who spent 10,000 bitcoin on two Papa John’s pizzas in 2010.
The identity of Bitcoin creator Satoshi Nakamoto remains a mystery.
Bitcoin has often been used to buy illicit products such as drugs.
How the blockchain is tamperproof:
One of the advantages of blockchain is that it can’t be tampered with. Each block that is added to the chain carries a hard, cryptographic reference to the previous block.
That reference is part of the mathematical problem that needs to be solved in order to bring the following block into the network and the chain. Part of solving the puzzle involves working out a random number called the “nonce.” The nonce, combined with the other data such as the transaction size, creates a digital fingerprint called a hash. This is encrypted, thus making it secure.
Each hash is unique and must meet certain cryptographic conditions. Once this happens a block is completed and added to the chain. In order to tamper with this, each earlier block, of which there are over half a million, would require the cryptographic puzzles to be re-mined, which is impossible.

A Brief History of Blockchain:

The blockchain. Before it was ever used in cryptocurrency, it had humble beginnings as a concept in computer science — particularly, in the domains of cryptography and data structures.
The very primitive form of the blockchain was the hash tree, also known as a Merkle tree. This data structure was patented by Ralph Merkle in 1979, and functioned by verifying and handling data between computer systems. In a peer-to-peer network of computers, validating data was important to make sure nothing was altered or changed during transfer. It also helped to ensure that false data was not sent. In essence, it is used to maintain and prove the integrity of data being shared.
How Does Blockchain Work?
How does the blockchain work? Let’s recall a few key features before we get into the details:
1. Blockchain keeps a record of all data exchanges — this record is referred to as a “ledger” in the cryptocurrency world, and each data exchange is a “transaction“. Every verified transaction is added to the ledger as a “block”
2. It utilizes a distributed system to verify each transaction — a peer-to-peer network of nodes
3. Once signed and verified, the new transaction is added to the blockchain and cannot be altered
To begin, we need to explore the concept of “keys”. With a set of cryptographic keys, you get a unique identity. Your keys are the Private Key and Public Key, and together they are combined to give you a digital signature. Your public key is how others are able to identify you. Your private key gives you the power to digitally sign and authorize different actions on behalf of this digital identity when used with your public key.

Why is Decentralization So Important?

For enthusiasts of the blockchain, you will hear a lot about the decentralized aspect of it. What makes this so appealing is that it makes the blockchain impervious to censorship, tampering, or corruption.
Because it uses a peer-to-peer network, copies of the ledger are stored in many different locations, and unless you manage to track down every single one of them (Bitcoin is estimated to have over 35,000 nodes in its P2P network), you can’t destroy it. As well, because so many different, independent nodes are keeping track of the ledger, modifying it in an untrustworthy way won’t go very far because all the other nodes will disagree with that transaction and won’t add it to the ledger.
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How much a day cost Amazon CEO?

You are worried about your failures and losses? You must be, despite the fact whats the cost of your failure? How much you did loss? Nothing to worry about because your total value is just 0.0001 % of the loss of Amazon in one day. That’s ridiculous and painful.

Plunging global markets lopped $US99 billion ($140 billion)  from the fortunes of the world’s 500 wealthiest people, the year’s second-steepest one-day drop for the Bloomberg Billionaires Index

PROBABLY THE BIGGEST BLOW EVER

Amazon.Com Inc. founder Jeff Bezos lost $US9.1 billion ($12.9 billion), the most of anyone on the index, as shares of the online retailer fell the most in more than two years. The plunge lowered Bezos’s net worth to $US145.2 billion, its lowest since July.

It was part of a horrific plunge on the Nasdaq index, which suffered its worst day in two years, the index finishing over 4 per cent lower.

Apple gave up 4.6 per cent to $US216.36 and Microsoft dropped 5.4 per cent to $US106.16. Amazon skidded 6.2 per cent to $US1,755.25 and Alphabet, Google’s parent company, gave up 4.6 per cent to $US1,092.16.

Amazon has soared 50 per cent this year but has fallen 14 per cent from its all-time high in early September.

Unicorn feature of Mercedes Benz “Digital Light” displays message for pedestrians

With more than one million micromirrors per headlight, Mercedes-Benz Digital Light HD headlights do much more than just illuminate the highway.

Drivers can project messages on the road in front of a car equipped with the new headlights. The lights can also project navigation guides and road conditions or traffic warning symbols.

Digital Light onboard computers control the HD headlights, which are available in limited quantity for Mercedes-Maybach S-Class sedans. The car shown in the images and video that accompany this article is the Mercedes-Maybach S 560 4Matic, which has a $168,600 U.S. starting list price.

Like most auto manufacturers, Mercedes-Benz introduces new features first in top-of-the-line models for two reasons: exclusivity and scale. Customers who buy the most expensive models are rewarded with a feature most vehicles won’t include for years, perhaps even a decade or more. Also, because the top-model customers are already paying big bucks, they are more likely to spend the extra money new features cost before economies of scale bring prices down.

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How can plunging Lira impact EU market: EU spokesperson

EU spokes person Christian told: We have formed a commission who has taken this charge to monitor whatever is happening with Lira and also its sudden sharp decline. We are aware of all possible facts and outcomes and we are in a state of observation as most of the banks in Turkey are owned by European or Middle Eastern investors. So there is a possibility that this turmoil could impact European markets.

We don’t want to engage in speculations on what will happen on the migration front,” Spahr said

What Erdogan urge to Turks:

This weekend Turkish President Recep Tayyip Erdogan called on Turks to help support the lira by selling their dollars and euros. “If there are dollars under your pillow, take these out,” he told supporters at a rally in the northeastern Turkish town of Unye. 

Consecuencias del Brexit

How this all happened with Lira:

Now, the lira has plumbed new depth, after US President Donald Trump confirmed on Friday that he had approved the doubling of tariffs on Turkish steel and aluminium following the detention in Turkey of US evangelical pastor Andrew Brunson on terrorism charges. 

What does this mean for the world?

Experts have warned that this may not be a localised crisis. This morning other emerging market and high-yielding currencies tumbled across the board, “despite the fact Turkey accounts for just one percent of the world economy”, The Daily Telegraph reports.

The crash saw European markets fall sharply when markets opened, particularly in countries with banks exposed to the Turkish currency, such as Spain’s BBVA, Italy’s UniCredit and France’s BNP Paribas. On Friday, the FTSE fell 75 points, while Germany’s Dax ended the day down 2%.

Reuters reports that emerging market currencies continue “to reel as investors worry about contagion”, exemplified by the South African rand, which dropped 3.1% this morning, while the Russian rouble dropped 0.8% and the Mexican peso 1.5%.

Elsewhere, the euro fell to as low as $1.1365, a 13-month low, before recovering to trade down 0.2% to $1.1382. The dollar, which has rallied in the Turkish lira crisis, gained 0.1% to 96.463 against a basket of major currencies, Reuters adds.

The yen surged 0.6% to 110.265 after earlier hitting a six-week high of 110.11, and the Swiss franc rose 0.5% to $1.1288

 

 

 

 

 

In Retail industry every second has cost & Walmart knows it

Retail is one of the fastest industry on planet and every second means value to retail giants thats why they are realising competitive and have heads down on making significance advancements in all possible segments. Keeping in view this utter need of time Walmart has used tech apt. Where every second has a value they intended to save time and money and they have come up with Unicorn idea

Alphabot is the latest technology to be tested by Walmart. Other pilots include shelf-scanning inventory robots, self-driving floor-scrubbing robots and a partnership with Waymo that provides autonomous vehicle transportation for grocery order pickup. Walmart has also been expanding its Pickup Tower feature as well as its grocery delivery service with the help of DoorDash and Postmates. Looking to the future, recent patents filed by the company include designs for smart carts, wearables, a drone and an audio surveillance system.

Walmart automated system will allow consumer to fill online order and receive in the car that minimize time and cost

Although this is a small pilot, we expect big things from it,” Walmart said about Alphabot. “We have a lot to learn about this new technology, and we’re excited about the possibilities of how we can use it to make the future of shopping — and working — even better

#alphabot #gadgetry #Walmart #Onlineordering #Grocery #Services #robots #Gears #gadgets #technology #human #resource #Manpower

JP Morgan, Chase customers No longer need card for ATM transaction in US

JP Morgan is another step closer to its mission and this time its the most awaited innovation people were expecting from some financial institution in coming future which JP Morgan predicted long time ago and address the expectation and started working on. Chase added an upgraded feature in ATM’s for customer in almost 16000 ATM’s in some states

 

Chase announced Wednesday that it had rolled out cardless transactions to most of its ATM network, meaning customers no longer need a physical debit card and can instead retrieve cash using a mobile wallet — such as Apple Pay, Google Pay, or Samsung Pay — on their smartphone.

At ATMs with a cardless symbol (see below), customers can open their mobile wallet, tap their phone, and then enter their PIN to access their account.

At nearly every one of JPMorgan Chase’s 16,000 ATMs, customers no longer need a card to take out cash

Here’s Chase’s simple visual guide to performing a cardless transaction:

JPMorgan Chase

Chase began rolling out the feature — which uses the “near-field communication” technology that enables transactions from mobile wallets — in 2016, and Bank of America and Wells Fargo have debuted similar capabilities as well.

The largest banks in the US have been investing millions in updating the capabilities and physical appearances of their thousands of ATMs as their digital and mobile customer bases balloon.

Bank of America has also got a kind of feature which allows customers to scan a cheque through mobile phone (taking picture) and submit it in mobile app hence save time by not standing in cue. www.BankofAmerica.com

While cardless transactions are a convenient perk to Chase’s more than 30 million active mobile customers, the feature could also result in savings for the bank.

It costs banks about $0.20 to replace a lost, stolen, or otherwise corrupted card, according to the consulting firm A.T. Kearney, a sum that can add up when you serve tens of millions of customers, as Chase and its largest competitors do.

The more customers can rely on their already omnipresent smartphones, the more likely they are to phase out cards that fatten their wallets and can more easily be lost or compromised.

#JPMorgan #Chase #Cardless #Atms #Americans #Banks #Customer