Sgi Irix 5.0Sgi Irix 5.3Sgi Irix 6.0Sgi Irix 6.0.1Sgi Irix 6.1Sgi Irix 5.1Sgi Irix 5.2Sgi Irix 6.2Sgi Irix 6.4Sgi Irix 5.0.1Sgi Irix 5.1.1Sgi Irix 6.3Freebsd Freebsd 2.0Freebsd Freebsd 2.0.5Freebsd Freebsd 2.1.0Freebsd Freebsd 2.1.5Bsdi Bsd Os 2.1Next Nextstep 4.0Sun Sunos 4.1.3u1Next Nextstep 4.1Sun Sunos 4.1.4