All in one emulator on Android!
A cross-platform PSP emulator
MAME is a multi-purpose emulation framework
Versatile Commodore Emulator
Run Windows applications on Linux, BSD, Solaris, and Mac OS X
A multi-purpose emulation framework
Nestopia UE
Emulates the range of ZX home computers made by Sinclair Research Ltd
Apple 2 and Agat 7/9 emulator
Transfer disks and disk images between the Apple II and the real world
C64 Emulator
Software development for 4Mb portable, using Z80 CPU and AA batteries
tty0tty is a kernel-module virtual serial port driver for Linux.