HP 3000 Manuals

Using the 900 Series HP 3000: Fundamental Skills Module 7: Solutions Guide

Lesson 3:  The Keyboard 

   1.  Information entered is a set of characters--nothing is sent to the
       computer until Return or Enter is pressed.

   2.  Although the characters may still remain visible on the terminal
       screen, the Back Space key ([[backspace]]) "erases" characters
       from terminal memory as it spaces backwards over them.

MPE/iX 5.0 Documentation