시스템변수
- GROUPDISPLAYMODE
- AFLAGS
- AGDEFAULTBLOCK
- ANGBASE
- ANGDIR
- APERTURE
- AREA
- ARRAYASSOCIATIVITY
- ARRAYEDITSTATE
- ARRAYTYPE
- ATTDIA
- ATTIPE
- ATTMULTI
- AUDITCTL
- BACKGROUNDPLOT
- BEDITIBLOCKDEF
- BINDTYPE
- CALCINPUT
- CDATE
- CECOLOR
- CELTSCALE
- CELTYPE
- CELWEIGHT
- CENTERMT
- CETRANSPARENCY
- CHAMFERA
- CHAMFERB
- CHAMFERC
- CHAMFERD
- CHAMMODE