0.90 Operating System DOS IBM/Microsoft 20HAL.COM ASM.COM AUTOEXEC.BAK BAS18.COM BAS18A.COM BASIC.COM BASICA.COM CHKDSK.COM CIRCLE.MAC COMMAND.COM COMMENTS COMMENTS.BAK COMP.COM CONVERT.COM CUBE.DAT DATE.COM DEBUG.COM DISKCOPY.COM EDLIN.COM FCOMP.COM FORMAT.COM HEX2BIN.COM IBMBIO.COM IBMDOS.COM KILO.BAS MODE.COM MOVBAS.COM RBAS.COM SHIPS.MAC SPCWAR.BAS SYS.COM THREED.BAS TIME.COM TTY.ASC VCOPY.BAT