Bitcoin is a decentralized digital currency. It is an open source project under active development.

Bitcoins can be sent,Guest Posting received and managed through various independent websites, PC clients and mobile device software.
Bitcoins are sent and received through clients and websites called wallets. They send and confirm transactions to the network through Bitcoin Blockchain password manager addresses, the identifiers for users’
Bitcoin wallets within the network.

There are a variety of ways to acquire bitcoins:

Accept bitcoins as payment for goods or services.
There are several services where you can trade them for traditional currency.
Find someone to trade cash for bitcoins in-person through a local directory.
Participate in a mining pool.

Bitcoin doesn’t ask that it users trust any institution. Its security is based on the cryptography that is an integral part of its structure, and that is readily available for any
and all to see. Instead of one entity keeping track of transactions, the entire network does, so Bitcoins are astoundingly difficult to steal, or double-spend. Bitcoins are created
in a regular and predictable fashion, and by many different users, so no one can decide to make a whole lot more and lessen their value. In short, Bitcoin is designed to be inflation
-proof, double-spend-proof and completely distributed.

Bitcoins are still far from mainstream, but they can be used as a valid form of payment for all kinds of goods and services.
One advantage Bitcoin fans cite is the ability to move money instantly anywhere in the world.
By eliminating the middlemen — credit-card companies, financial institutions, PayPal — Bitcoin allows money to change hands digitally as quickly as cash does in the real world.
Buying Bitcoins from individuals with Paypal is possible, but requires the seller to have some trust that the buyer will not file a claim with PayPal to reverse the payment.