How to copy a large file or directory to a floppy diskette?

This all depends on the size of the directory. If the directory is larger than 1.4MB then it is recommended that you use a compression utility to compress the files onto the diskette or multiple diskettes. To check the directory size in MS-DOS, from the directory type:

dir /s

Once the directory has been listed, at the end of the results you should see the amount of bytes taken.

If the directory is smaller than 1.4MB, you can use the below command to copy all files from that directory to a floppy diskette:

copy *.* a:

If the directory is larger than 1.4MB, it is recommended that a compression utility be used.