IBM System/360 User Manual

I
What You Must Know to Use T50
Before you begin a terminal session, you should know:
• How to enter information at the terminal.
• How to use the TSO commands.
• How to interpret TSO messages.
• How to use the attention interruption.
• How to use the HELP command.
Entering Information at the Terminal
All TSO terminals have a typewriter-like keyboard through which you
enter information into the system. The features of each keyboard vary
from terminal to terminal; for example, one terminal may not have a
backspace key, while another may not allow for lowercase letters. The
features of each terminal as they apply to TSO are described in the
publication, TSO Terminals.
Certain conventions apply to the use of all TSO terminals. They are:
• Any lowercase letters you type are interpreted by the system as
uppercase letters. For example, if you type in:
abcDe8-fg
the system interprets it as:
ABCDE8-FG
The only exceptions are certain text-handling applications which
allow you to type in text with both uppercase and lowercase letters.
Text handling is discussed in the section "Entering and Manipulating
Data".
• All messages or other output sent to you by the system come out in
uppercase letters. The only exception is the output from the
special text-handling applications mentioned previously which comes
out both in uppercase and lowercase.
TSO also provides a method for you to correct your typing mistakes. You
can request that the character you just typed be deleted or that all the
preceding characters in the line be'deleted. You can define your own
character-deletion and line-deletion control characters, or you can use
the default characters in the system. For example, if the control
characters are the quotation mark (") for deleting the preceding
character, and the percent sign (%) for deleting all the preceding
characters of the line, and you type the following message:
first ent%Sect"onft""d ENR"try
it is received by the system as:
SECOND ENTRY
Note that you can use the character-deletion character repetitively to
delete more than one of the preceding characters in the line.
What you Must Know to Use TSO 11

IBM System/360 Specifications

General

Brand	IBM
Model	System/360
Category	Desktop
Language	English