AT&T 610 - Display

User's Guide
August 1985
Overview
3. Display
The display is a 12-inch diagonal CRT with rectangular
shaped (3 x 4 ratio) raster area. The dot matrix of the display
is character oriented. Either an 80 or 132 character line
format can be displayed. The number of columns per line is
selected by option or received escape sequence.
The display has a screen saver feature which causes the
video to be blanked after one hour of inactivity (no key
depressed or data received). The video is returned when a
character is received or a key is depressed.
If reactivated by a key depression, that character (one
only) will not be sent on-line or appear on the screen.
The cursor is an inverse video rectangle or, optionally, an
underline that occupies one character position. It indicates
the location of the display activity. When the cursor is
located at a position that already has a character, that
character will appear as a dark character on a light background
(if the cursor is a rectangle). Entering a different character
will replace the original character with the entered one.
Entering a character may be done from the line or the keyboard
(with local or remote echo). One of the terminal options allows
the cursor to blink or to remain steady. The cursor moves
position by position as characters are received or typed. The
cursor can be positioned anywhere on the twenty-four data lines
of the display through the use of the cursor positioning keys
(with local or remote echo) or by escape sequence commands.
Options are described in Section 5 and escape sequences are
described in Section 8.
Display
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