14 Introduction
The figure below represents the entire page memory of a 48 line page (24 base page
length times a multiplier of 2) and the portion of the page that is viewable on the
display screen, when “26 Lines” is selected. Notice that the label line is visible in this
mode.
Visual Effects of Screen and Page Lengths
The combination of page and screen lengths influence the number of displayable data
lines. For example, if the page length is “50” (25 x 2), and the screen length is 44
lines, the number of data lines that are visible at any one time is 43, with no label line
(the other line is used for the top status line). On a 52 line screen, 50 of the 52 data
lines are visible at one time in single session mode.
If the page length is shorter than the screen length, blank lines are present below the
data line or status/label line. If the page length is larger than the allowable number of
data lines, some of the rows are out of view. In order to bring them into view,
“scrolling” or “panning” is used as necessary.
Scrolling causes a new line to scroll into view when the cursor advances past the last or
first row on the page. If the cursor moves past the last row, the top row of text is lost;
if past the first row, the bottom row of text is lost (if Auto Scroll is “on” in Setup).
Note that text scrolled off the screen is not recoverable.