This is a disk image from an old floppy I found among my GRiD related disks. It was marked "1530 System Disk" and appears to be a GRiD MS-DOS 3.21 system disk. It looks like most of the files are there, but since this isn't an official disk, I can't say for certain. Nonetheless, it works great as a boot disk for the 1500 series. I've included a floppy disk image of PC Master/PC Slave 3.21 as well. The document here describes the changes made to GRiD MS-DOS 3.21 from 3.2. Disk type: 3.5", 1.44MB Disk OS/File Format: MS-DOS (FAT12) Image type: WinImage (.ima) and ImageDisk (.imd) File Name Size File Type Date/Time -------------------------------------------------------------------- ANSI.SYS 2,021 System file 9/8/1987 8:58:00 AM APPEND.EXE 5,794 Application 2/2/1988 12:00:02 AM ASSIGN.COM 1,530 MS-DOS Application 2/2/1988 12:00:02 AM ATTRIB.EXE 10,656 Application 2/2/1988 12:00:02 AM AUTOEXEC.BAT 104 Windows Batch File 5/2/1998 11:01:12 AM BACKUP.COM 30,323 MS-DOS Application 6/22/1988 10:50:30 AM BASIC.COM 3,532 MS-DOS Application 10/3/1988 12:00:00 PM BASICA.COM 3,532 MS-DOS Application 10/3/1988 12:00:00 PM BASICA.EXE 79,304 Application 10/3/1988 12:00:00 PM CHKDSK.COM 9,819 MS-DOS Application 2/2/1988 12:00:02 AM CHKLIST.MS 1,593 MS File 5/3/1998 6:14:42 PM COMMAND.COM 25,308 MS-DOS Application 2/2/1988 12:00:02 AM COMP.COM 4,183 MS-DOS Application 2/2/1988 12:00:02 AM CONFIG.SYS 108 System file 12/13/1989 11:11:14 AM COUNTRY.SYS 11,254 System file 2/2/1988 12:00:02 AM DEBUG.COM 15,866 MS-DOS Application 2/9/1988 12:00:02 AM DEVICES.EXE 3,008 Application 5/26/1988 2:51:22 PM DISKCOMP.COM 5,895 MS-DOS Application 6/7/1988 1:30:14 PM DISKCOPY.COM 6,311 MS-DOS Application 6/8/1988 2:22:58 PM DRIVER.SYS 1,165 System file 2/2/1988 12:00:02 AM EDLIN.COM 7,495 MS-DOS Application 2/2/1988 12:00:02 AM EMM.SYS 10,752 System file 11/10/1988 9:06:40 AM EXE2BIN.EXE 3,050 Application 2/2/1988 12:00:02 AM FASTOPEN.EXE 3,888 Application 2/2/1988 12:00:02 AM FC.EXE 15,974 Application 2/9/1988 12:00:02 AM FDISK.COM 48,983 MS-DOS Application 11/2/1988 1:02:12 PM FIND.EXE 6,403 Application 2/2/1988 12:00:02 AM FORMAT.COM 11,750 MS-DOS Application 3/31/1989 2:16:54 PM FORMATLD.BAT 36 Windows Batch File 10/5/1987 9:49:44 AM GRAFTABL.COM 6,136 MS-DOS Application 2/2/1988 12:00:02 AM GRAPHICS.COM 13,943 MS-DOS Application 2/2/1988 12:00:02 AM GRID386.COM 7,140 MS-DOS Application 9/26/1989 4:56:40 PM GRID386.SYS 58,724 System file 9/26/1989 4:55:30 PM GRIDSCAN.EXE 10,546 Application 4/24/1989 10:48:20 AM GWBASIC.EXE 78,864 Application 5/15/1987 3:20:00 AM HELP.EXE 60,483 Application 3/22/1989 4:41:28 PM HELP.HLP 75,806 Help file 4/19/1989 4:30:42 PM IO.SYS 30,315 System file 6/1/1989 11:29:12 AM JOIN.EXE 9,612 Application 2/2/1988 12:00:02 AM LABEL.COM 2,346 MS-DOS Application 2/2/1988 12:00:02 AM LINK.EXE 43,988 Application 2/9/1988 12:00:02 AM LOWPOWER.SYS 407 System file 5/15/1989 9:24:04 AM MODE.EXE 8,912 Application 5/29/1989 6:15:42 PM MORE.COM 282 MS-DOS Application 2/2/1988 12:00:02 AM MSDOS.SYS 30,128 System file 5/27/1988 11:46:12 AM NUMPAD.COM 465 MS-DOS Application 9/29/1987 1:18:04 PM NUMPAD.SYS 1,121 System file 9/29/1987 1:18:18 PM PCMASTER.SYS 3,678 System file 2/5/1988 10:02:28 AM PCSLAVE.EXE 4,336 Application 2/5/1988 10:02:36 AM PHONELNK.EXE 57,378 Application 1/18/1988 6:05:50 PM PRINT.COM 9,011 MS-DOS Application 2/2/1988 12:00:02 AM RAMDRIVE.SYS 8,225 System file 2/9/1988 12:00:02 AM README 9,212 Local Disk 10/16/1989 11:44:14 AM README.BAT 10 Windows Batch File 8/23/1988 8:43:10 PM README.GRD 9,194 GRD File 6/13/1989 3:52:46 PM RECOVER.COM 4,315 MS-DOS Application 6/7/1988 1:06:50 PM REPLACE.EXE 13,234 Application 2/9/1988 12:00:02 AM RESTORE.COM 35,693 MS-DOS Application 6/22/1988 11:37:54 AM RUN.BAS 5 BAS File 5/3/1996 6:55:34 PM SERVER.EXE 38,468 Application 11/19/1987 3:01:28 PM SETPASS.EXE 23,233 Application 5/9/1989 2:03:54 PM SETUPVGA.EXE 6,112 Application 6/23/1989 12:07:24 PM SHARE.EXE 8,608 Application 2/9/1988 12:00:02 AM SHOWMEM.EXE 3,618 Application 9/22/1988 10:54:04 AM SORT.EXE 1,946 Application 2/2/1988 12:00:02 AM SUBST.EXE 10,552 Application 2/2/1988 12:00:02 AM SYS.COM 4,789 MS-DOS Application 5/26/1988 2:21:34 PM TREE.COM 3,540 MS-DOS Application 2/2/1988 12:00:02 AM XCOPY.EXE 11,216 Application 2/9/1988 12:00:02 AM ------------- |PCMS321.IMD| - PC Master/PC Slave 3.21 ------------- File Name File Type Version/Date -------------------------------------------------------------- PCMASTER .sys 2/05/88 PCSLAVE .exe 2/05/88