ubuntu 是来源于非洲的一整套哲学价值体系，这套价值体系的核心在于人和人之间的联系 —— 有你才有我。ubuntu 这个词的直译是“善待别人”。
而 Ubuntu 操作系统的团队选取这个名字，是因为这个团队希望将 ubuntu 的精神带到电脑和软件的赛博世界里。
注：Ubuntu 是一款基于 Linux 的操作系统。Ubuntu 的读音是，“乌邦兔”。 source
BY 程序员之家
Most people buy Bitcoin via exchanges, such as Coinbase. Exchanges allow you to buy, sell and hold cryptocurrency, and setting up an account is similar to opening a brokerage account—you’ll need to verify your identity and provide some kind of funding source, such as a bank account or debit card. Major exchanges include Coinbase, Kraken, and Gemini. You can also buy Bitcoin at a broker like Robinhood. Regardless of where you buy your Bitcoin, you’ll need a digital wallet in which to store it. This might be what’s called a hot wallet or a cold wallet. A hot wallet (also called an online wallet) is stored by an exchange or a provider in the cloud. Providers of online wallets include Exodus, Electrum and Mycelium. A cold wallet (or mobile wallet) is an offline device used to store Bitcoin and is not connected to the Internet. Some mobile wallet options include Trezor and Ledger.
A project of our size needs at least a few hundred million dollars per year to keep going,” Mr. Durov wrote in his public channel on Telegram late last year. “While doing that, we will remain independent and stay true to our values, redefining how a tech company should operate.
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