IBM 3174 Reference Manual page 16

Summary of Changes for the Fourth Edition
This book has been revised to include the following changes and enhancements:
• This book supports IBM 3174Configuration Support B Release 2.
• This book has been reorganized to enhance the retrievability of the material.
Specifically, information on 3270 terminals and ASCII terminals is now covered
in separate chapters.
• Two editing functions have been added:
- Type Ahead allows you to continue typing while the hostcomputer is busy
processing keystrokes. This helpsyou to enter keystrokes faster.
— You can now use a sequence of keys to turn Enhanced Null/Space
Processing on and off.
Both of these functions are described in detail in Chapter 1, "Getting Started.
• Additional ASCII terminals can be used to communicate with IBM or ASCII
hosts.
• Control codes and escape sequences have been removed from this book and
are now contained in 3174 Asynchronous Emulation Adapter Description and
Reference.
• In this release, 3270 terminals can now be used as Data General Dasher
D210** or DEC VT220" terminals.
• Appendix A, "Terminal Keyboard Maps," contains additional keyboard maps.
• Appendix B, "Using a Modem and an ASCII Terminal With the 3174
Asynchronous Emulation Adapter," contains switch settings for additional
terminals.
Technical changes to the text and illustrations are indicated by vertical lines in the
left margin next to the text or illustration.
© Copyright IBM Corp. 1987.1990