4.00 Operating System DOS IBM/Microsoft PC-DOS 4.00 (Disk 1) 012345.678 AUTOEXEC.BAT COMMAND.COM CONFIG.SYS COUNTRY.SYS DISKCOPY.COM DISPLAY.SYS DOS00I.400 FDISK.COM FORMAT.COM IBMBIO.COM IBMDOS.COM KEYB.COM KEYBOARD.SYS REPLACE.EXE SELECT.COM SELECT.HLP SELECT.PRT SYS.COM PC-DOS 4.00 (Disk 2) ASSIGN.COM ATTRIB.EXE BASIC.COM BASICA.COM COMMAND.COM COMP.COM DEBUG.COM DISKCOMP.COM DOS01I.400 EDLIN.COM FILESYS.EXE FIND.EXE IFSFUNC.EXE JOIN.EXE LABEL.COM MEM.EXE MODE.COM MORE.COM MORTGAGE.BAS SHARE.EXE SORT.EXE SUBST.EXE TREE.COM XCOPY.EXE PC-DOS 4.00 (Disk 3) 012345.678 CHKDSK.COM COMMAND.COM DISKCOPY.COM DOS02I.400 DOSUTIL.MEU PCIBMDRV.MOS PCMSDRV.MOS PCMSPDRV.MOS PRINT.COM SHELL.CLR SHELL.HLP SHELL.MEU SHELLB.COM SHELLC.EXE PC-DOS 4.00 (Disk 4) 4201.CPI 4208.CPI 5202.CPI ANSI.SYS APPEND.EXE COMMAND.COM COUNTRY.SYS DISPLAY.SYS DOS03I.400 DRIVER.SYS FASTOPEN.EXE GRAFTABL.COM GRAPHICS.COM GRAPHICS.PRO IBMBIO.COM IBMDOS.COM KEYB.COM KEYBOARD.SYS MODE.COM NLSFUNC.EXE PRINTER.SYS RECOVER.COM VDISK.SYS PC-DOS 4.00 (Disk 5) BACKUP.COM DOS04L.400 EGA.CPI FORMAT.COM LCD.CPI MODE.COM RESTORE.COM SELECT.DAT SELECT.EXE XMA2EMS.SYS XMAEM.SYS