Linux runs all of the standard open source utilities, like GCC, (X)Emacs, the X Window System, all the standard Unix utilities, TCP/IP (including SLIP and PPP), and all of the hundreds of programs that people have compiled or ported to it. There is a DOS emulator, called DOSEMU, that lets Linux run programs written for DOS. The FTP archives are at ftp://ftp.dosemu.org/dosemu.

 

Work has been progressing on WINE, an emulator for Microsoft Windows binaries.