v 0.74-3|DOSBox
DOSBox is a DOS emulator that uses the SDL library. DOSBox is very easy to port to other platforms. DOSBox has been successfully port to Linux, MacOS X, and Windows.
DOSBox also emulates CPU:286/386 realmode/protected mode, Directory FileSystem/XMS/EMS, Tandy/Hercules/CGA/EGA/VGA/VESA graphics, and SoundBlaster/Gravis Ultra Sound card for excellent sound compatibility with older games.
DOSBox is a powerful DOS-emulator that can run all kinds of classic games from a bygone era. It is a steep learning curve, so if you're a beginner you might find it difficult to get used to. It is a great way for you to play classic games that aren't available on a new computer.