Whatsapp on desktop PC, yes you are right Whatsapp is looking for Whatsapp web version. According to various sources Whatsapp Company will provide to you web version look like facebook or twitter account. Instant messaging app company Whatsap growing business day by day so its responsibility and users demanding whatsapp on computer so whats very soon you can use whats app on laptop. Now whatsapp services are running in phone, tablet or notepad. 
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As officially it is not announced but Whatsapp virtue sources web platform work has been already stared. It is worth knowing that the instant messaging app Whatsap have 600 million active users worldwide, which has 70 million users in the Indian border. Whatsap soon start offering service on the desktop and may increase the number of users on Whatsapp. Whatsapp is not first desktop based company else Viber, Telegrams and V-chat have already launched its desktop based versions.

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Bitcoin is a cryptocurrency, which is a form of electronic cash. This is the first decentralized digital currency: the system was designed to work without a central bank or a single administrator. Many economists and investors consider the Bitcoin market to be a bubble. Bitcoin has also been criticized for its use in illegal transactions, its high power consumption, price instability, and theft from exchanges.

What Is Real Cryptocurrency
Bitcoin is made as a reward for the process known as mining. They can be exchanged for other currencies, products and services. The research produced by Cambridge University estimates that in 2017, there were 2.9 to 5.8 million unique users using cryptocurancency wallet, most of which used bittoine. A cryptocurrency (or crypto currency) is a digital asset designed to work as a medium of exchange that uses cryptography to secure its transactions, to control the creation of additional units, and to verify the transfer of assets. Cryptocurrencies are classified as a subset of digital currencies and are also classified as a subset of alternative currencies and virtual currencies.

Bitcoin, created in 2009, was the first decentralized cryptocurrency. Since then, numerous cryptocurrencies have been created. These are frequently called altcoins, as a blend of bitcoin alternative. Bitcoin and its derivatives use decentralized control as opposed to centralized electronic money/central banking systems . The decentralized control is related to the use of bitcoin's blockchain transaction database in the role of a distributed ledger