Long-time Slashdot readerDeQueue writes:
Back in 2011 Fabrice Bellard, the initiator of the QEMU emulator, wrote a PC emulator in javascript that let you boot linux in your browser . But he didn't stop there.
On his website he now has images that let you boot Oberon, Arch Linux, FreeDOS, OpenBSD, Solar OS and more recent versions of Linux such as 2.6 or 3.18 (the 3.18 image includes internet access). You can also boot to a CD image, or a floppy image, or a hard drive disk image on your local machine. And, if you don't need yet another operating system on your computer, you can even boot to Bootchess and play chess