These are the GRiD utilities that allow you to transfers files between two PCs over a null modem cable. Version 3.2 and 3.21 would normally be included with GRiD MS-DOS 3.2 and 3.21, respectively, but I decided to bundle them here for convenience. I've added the PC Master/PC Slave chapter from the GRID MS-DOS 3.2 reference along with the GRiD MS-DOS 3.21 update supplement document. 

Disk Type: 360kB, 5.25"
OS/File Format: DOS/FAT12
Disk Image Format: ImageDisk (.imd)

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| PCMS32D.IMD | - PC Master/PC Slave 3.2D
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File Name                       File Type       Version/Date
--------------------------------------------------------------
PCMASTER			.sys		10/20/86
PCSLAVE				.exe		10/20/86


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| PCMS321.IMD | - PC Master/PC Slave 3.21
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File Name                       File Type       Version/Date
--------------------------------------------------------------
PCMASTER			.sys		2/05/88
PCSLAVE				.exe		2/05/88