我们身边有哪些Linux系统（来自quora）

There are 2 billion Android phones out there - right now, every one of them is running the Linux operating system under the hood.
目前市面上有 20 亿部安卓手机——每一部都在底层运行着 Linux 操作系统。

Most people don’t know it’s there.
大多数人并不知道这一点。

79% of web sites that you visit run Linux (that goes up to 97% if you only count the million most-popular sites). 498 of the 500 fastest computers in the world run Linux.
你访问的 79%的网站运行的是 Linux（如果你只计算前百万个最热门的网站，这一比例会上升到 97%）。全球 500 台最快的计算机中有 498 台运行 Linux。

Most people don’t know it’s there.
大多数人并不知道这一点。

But I’m a Linux nut - I use it on my main computer and my laptop every day…so I fondly imagine that I know about these things.
但我是个 Linux 迷——我每天在主电脑和笔记本电脑上使用它……所以我很得意地以为我了解这些事情。

But no. I own 4 TV sets - and the other day, I needed to actually read the instruction book…on the back page, I noticed a page with “Open Source Licenses” listed on it…which is good because if you use OpenSource libraries, you’re required to say so someplace. Guess what? All four of my TVs run Linux! I literally had no idea.
但不是。我拥有 4 台电视机——前几天，我需要实际阅读说明书……在封底，我发现了一页列有“开源许可证”……这很好，因为如果你使用开源库，就必须在某处声明。猜猜看？我所有的 4 台电视机都运行 Linux！我完全不知道。

So then I started to look at other instruction books. Turns out my dishwasher and my wife’s car both run Linux…probably other things that I didn’t keep the instructions for - and things made by companies who don’t bother to tell you to, too.
于是我开始查看其他说明书。结果发现我的洗碗机和妻子的汽车都运行 Linux……可能还有其他我没有保留说明书的东西——以及那些制造商懒得告诉你的东西。

Because small/cheap computers cost less than the price of a MacOS or Windows software license, almost all of IoT (Internet of Things) devices that need an OS at all, will be running Linux…because it’s free and it works very well indeed. I know someone whose front door bell runs Linux.
因为小型/廉价计算机的成本低于 MacOS 或 Windows 软件许可证的价格，几乎所有需要操作系统的物联网（IoT）设备都会运行 Linux……因为它是免费的，而且确实运行得非常好。我知道有人家的门铃运行 Linux。

The Linux kernel contains 20 million lines of code. About 10,000 people have contributed code to it (I’m proud to be one of them) - and it’s FREE.
Linux 内核包含 200 万行代码。大约有 1 万人为其贡献代码（我很自豪是其中之一）——而且它是免费的。

This is an astounding piece of technology - yet even the people who wrote it are often completely unaware that it’s slipped quietly into some other odd corner of their lives - quietly making things better - rarely taking credit.
这是一项令人惊叹的技术——然而即使是编写它的人也常常完全不知道它已经悄然滑入他们生活中的一些其他奇怪角落——悄然让事情变得更好——很少得到认可。