#### (computer) hardware systems
"full comp.sys and alt.sys" comp.sys.* alt.sys.*
"Amiga (Commodore)" :amiga
"IBM PC and clones" :ibmpc
"Machintosh" comp.sys.mac.*
"NeXT" comp.sys.next* biz.next.newprod bit.listserv.next-l
"Sun" comp.sys.sun* unm.sys.sun.managers
"Other comp.sys and alt.sys groups" comp.sys.* alt.sys.* !*.sys.amiga !*.sys.ibm.pc !*.sys.mac !*.sys.next !*.sys.sun
