Instruction manual

You can see user 1 has no files on disk A. Now create a file, with the name test2.com. Switch back to
user 0, and display the directory. You see only test1.com. Switch to user 1, and do DIR, and you see
that user's test2.com file.
User 1's files are not visible to user 0, and vice-versa.
We can erase files with the ERA command. Here we erase the files from both user's directories:
The TYPE command displays a text file to the console, but since we don't have any text file on the disk
at present we won't demonstrate it now.
The system configuration described in the CBIOS has 4 disks. To switch from one disk to another,
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