HP NonStop G-Series - Manual (Page 274)

Relationship Between the Line Editor and the Screen Editor
Page Mode Editing
C–4 058061 Tandem Computers Incorporated
When you press a function key that causes EDIT VS to read the screen,
EDIT VS stores any changes on the screen in a “recovery” file. Should ten
minutes elapse without your pressing a function key, EDIT VS reads the
screen and stores changes in the recovery file. This procedure makes it
possible for you to recover text if there is a failure. (See Appendix E, “EDIT
VS Error Recovery Procedures.”)
EDIT VS has a buffer stack (or holding area) for lines deleted or copied
from the text. The buffer stack holds up to 24 lines. The DELETE and COPY
function keys always push lines onto the stack. (Sometimes the JOIN and
BREAK functions push lines onto the stack.) The RETRIEVE function keys
take lines from the stack (retrieving the most recently added line or lines
first), put them back into the file, and display them on the screen.