March 30, 1979
4.2 IBM VM/370 eMS User's Guide

Since you can invoke CP commands from within the CMS virtual machine
environment, the CP and CMS command languages are, for practical
purposes, a single, integrated command language for CMS users.
GETTING COMMANDS INTO THE SYSTEM Before you can use CP and CMS, you should know (1) how to operate your
terminal and (2) your userid (user identification) and password.
There are many types of terminals you can use as a VM/370 virtual
console. Before you can conveniently use any of the commands and
facilities described in this publication, you have to familiarize
yourself with the terminal you are uS1ng. Generally, you can find
information about the type of terminal you are using and how to use it
with VM/370 in the If your terminal is a
3767, you also need the Jl§l In this publication, examples and usage notes assume that you are
using a typewriter-style terminal (such as a 2741). If you are using a
display terminal (such as a 3270), consult "Appendix c: Considerations
for 3270 Display Terminal Users" for a discussion of special techniques
that you can use to communicate with VM/370. Your userid is a symbol that identifies your virtual machine to VM/370 and allows you to gain access to the VM/370 system. Your password is a
symbol that functions as a protective device ensuring that only those
authorized to use your virtual machine can leg on. The userid and
password are usually defined by the system programmer for your
installation.
To establish contact with VM/370, you switch the terminal device on and VM/370 responds with some form of the message vm/370 online
to let you know that VM/370 is running and that you can use it. If you
do not receive the "vm/370 online" message, see the for specific directions. You can now press the Attention
key (or equivalent) on your terminal and issue the LOGON command to
identify yourself to the system:
cp logon smith
where SMITH represents a userid. The LOGON command
pressing the Return (or Enter) key. If VM/370 accepts
responds by asking you for your password:
ENTER PASSWORD: is entered by
your userid, it You then enter your password, which may be hidden, depending on your
terminal.
Section 1. What it Means to Have a CMS Virtual Machine 5