IBM System 360 User Manual page 23

You can have a simple set of attributes, such as the following:
SMITH User identification
+
LOCK Password
79t45 Account Number
+
P79 Procedure name
or a more complex set, such as
~SM~TH~
LOCK SEVEN REY
User identification
Passwords
+
~
+
79345 79374 74325 Account Numbers
+
I '\ \
P79 P80 P81 P82 Procedure Names
The latter set has three passwords (LOCK, SEVEN, and KEY) associated
with your user identification. If you use the password LOCK, you can
have your processing charged only to account 79345 and you can use only
procedure P79. If you use the password SEVEN, you can have your
processing charged to either account 79374 or 74325. If you choose
account 79374, you can use either procedure P80 or P81. If you choose
account 74325, you can use only procedure P82. Another way of using
procedure P82 is to choose password KEY. KEY only has account 74325 and
procedure P82 associated with it.
The LOGON command is a simple means of telling the system your user
identification, password, account number and procedure name. For
example, if you want to use procedure P8l, you must enter:
logon smith/seven acct(79374) proc(p81)
Whenever there is only one account number or procedure name
associated with the user identification and password the system selects
it by default. For example, account 79345 and procedure P79 are the
only account and procedure associated with password LOCK. Therefore,
when you log on you need only enter:
logon smith/lock
instead of:
logon smith/lock acct(79345) proc(p79)
Note: Some terminals have a feature which inhibits the printing of
passwords on the console listing. See the publication, TSO Terminals,
for more information.
If you choose password SEVEN, you must specify which account number
you want. If you select account 74325, you do not have to specify the
procedure because there is only one procedure associated with the
account.
logon smith/seven acct(74325)
If you select account 79374, you must also select a procedure name
because there are two· procedures associated with the account. For
example,
logon smith/seven acct(79374) proc(p80)
Starting and Ending a Terminal Session 23