http://bellard.org/jslinux/
A good online Linux environment for experiencing and testing Linux on systems that do not have Linux installed. There are no network-related features.
The following is the content of Baidu Encyclopedia:
Introduction
By programmer Fabrice Bellard wrote a piece of JavaScript to start Linux in a Web browser. Currently, you can only run this Linux using Firefox 4 and Chrome 11. It's not a fake Linux thing to imitate, it's actually running a Linux.
features
The modeler was written entirely by JavaScript, and the CPU emulator used the QEMU (close to 486 of the original) and made some changes to install Linux. JavaScript's terminal could have used termlib, but because OS keys and Web browsers are different (here) Linux uses the 2.6.20 kernel, the build configuration is here, and some minor changes are made. The disk uses RAM disk, which is loaded at boot time. Its file system is produced by BuildRoot and BusyBox. In the home directory there is a HELLO.C program that you can compile with TINYCC.
