Bring Back DOS
TRANSLATING X86 instructions to the RISC structure of an ARM chip takes a lot of processing power. It is possible to use virtual machine environment QEMU ( http://qemu.org) to emulate a 486-class PC on a Pi, and you can even run a treacle-slow Win 98 install on top. But that’s ridiculous. Instead, try the ARM port of DOSBox, so you can resurrect the classics without having to dredge up a machine that’ll deafen you and double your electricity bill. Just run sudo apt-get install dosbox from the Raspbian package manager. To get really authentic, dig out that old box of floppies, and use a USB floppy drive to read them. http://dosbox.com