21 is a software that is able to turn any computer into a Bitcoin Computer. What is interesting, it’s possible to get Bitcoin on any device in almost any country without a bank account or credit card. It is possible to earn money on HTTP requests. Using this software, customers get open documentation for development and the newest information about Bitcoin fees. Moreover, how creator say: you can join the blockchain revolution by supporting your own Bitcoin node with 21.
21 (formerly 21e6) was established during the November 2013 bubble as a startup. In March 2015, they announced having raised $116 million in venture capital.
Early history and secrecy
21 was founded in 2013 as 21e6, with the name being a reference to the controlled supply cap of the bitcoin economy. In November, it was the subject of intense speculation after revealing $5 million in venture capital from a regulatory filing. Co-founder Balaji Srinivasan stated that the startup's secrecy was "solely for pragmatic reasons – we didn’t have anything to say to the world, and they would not reveal their plans until May 2015.
In March 2015, 21 Inc announced the attraction of US $116 million venture capital investments, which is the largest to date financing bitcoin startup. Among the company's investor Andreessen Horowitz and RRE Ventures, the Chinese Yuan Capital, a manufacturer of mobile processors, Qualcomm Inc., Khosla Ventures, Data Collective, co-founders of PayPal, Peter Thiel and Max Levchin, the founder of eBay, Jeff Skoll.
21 Bitcoin computer
The device is called 21 Bitcoin Computer and is a hybrid that combines a normal micro-PC, a "miner" for the extraction of currency and the corresponding software. As a basis, Raspberry Pi 2 is used here. He's in charge of the normal computer part. For bitcoin mining, a specialized processor with a capacity of 50-125 GH/s is used with an efficiency of about 0.17 j/GH, which does not compare with the capabilities of even the most productive AMD video cards (Nvidia cards because of their architecture for bitcoin mining are poorly suited).
The purpose of 21 Bitcoin Computer-to simplify the work of developers engaged in this direction. Thanks to the platform 21 Bitcoin OS, based on Linux, with its own built-in payment system, the device allows, for example, to create an online store with payment directly with bitcoins or sell instant API calls. All of this is accessible from the command line interface. The system can run standalone or connect to any PC. Windows, Linux and Mac OS are supported. Availability of own processing unit for the production of currency expands the device's capabilities even more.
The 21 Bitcoin Computer is the first computer with native hardware and software support for the Bitcoin protocol
- It is designed for developers to easily build Bitcoin-payable apps, services and devices
- Operate it as a standalone computer, or connect it to any Mac, Windows, or Linux machine
- Has a suite of pre-configured Bitcoin-dependent software, and includes a 128 GB SD card loaded with a full copy of the Blockchain
- Includes all the items you need to get started - including a WiFI adapter, laptop-to-device cable, Raspberry Pi 2, and power supply