IBM 704 - Manual (Page 70)

Security
Defining Security
To control access to your server, you can implement several of the
security measures described in your User's Reference, including
password protection.
Password Overview
Two types of passwords are available with the PC Server 704.
These are the administrative and user passwords. You can set both
passwords using the Setup program and the System Configuration
Utility program.
Note: Table 8 on page 281 provides the default values for all
security-related data fields.
Enter Password appears on the screen to prompt you. (The
passwords do not appear on the screen as you type them.) If you
enter the wrong password, Enter Password appears again. After
three incorrect attempts, you must turn off the server and start
again.
Note: You can use any combination of up to seven characters (A–Z,
a–z, and 0–9) for your passwords. For additional security,
the user and administrative passwords should not be the
same. Keep a record of your password in a secure place.
The following table summarizes the levels of security with the
different levels of password protection.
52 PC Server 704 User's Handbook