comp.sys.unisys

comp.sys.stratus

comp.sys.sinclair

comp.sys.powerpc

comp.sys.harris

comp.sys.arm

comp.sys.amstrad.8bit

comp.sys.alliant

comp.sys.3b1

comp.os.vxworks

comp.os.plan9

comp.os.qnx

comp.os.parix

comp.os.lynx

comp.os.magic-cap

comp.os.coherent

comp.os.geos

comp.os.chorus

comp.binaries.geos

comp.binaries.cbm