VISUAL
TECHNOLOGY
INCORPORATED,
540
MAIN
STREET,
TEWKSBURY,
MA
01876
3.2.2.3
TABS
In SET-UP A mode, the location
of
each
tab stop
is
indicated
by
a
"T".
All
tab stops may
be
cleared
by
depressing the
[YJ
key
or
tab stops may
be
cleared individually.
To
set
or
clear a stop on
an
individual
basis,
the
following
procedure should
be
followed:
1.
Position the cursor under the tab stop
to
be
set
or
cleared.
2.
Depress the m key
to
set/clear the tab stop at the cursor location. Subse-
quent depressions
of
the W key
will
alternately set/clear the tab stop at
the cursor location.
Tab stops may also
be
set and cleared
by
the host computer,
see
Section 5.3.2.8.
3.2.2.4 Screen Brightness
Screen brightness may
be
adjusted up
or
down,
in either SET-UP A
or
SET-UP B mode.
Screen brightness
is
increased
by
depressing the
rn
key, and decreased
by
depressing
the
[]]
key.
3.2.2.5
ANSl/VT-52*
The
VISUAL
100 operates according
to
two
different
programming standards - American
National Standards Institute
(ANSI)
and VT-52. In ANSI Mode, the
VISUAL
100
will
generate and respond
to
control
codes and
control
sequences
as
defined in ANSI standard
X3.64, 1977. In VT-52 Mode, the
VISUAL
100
is
compatible
with
the DEC
VT-52
termi-
nal. The
control
sequences associated
with
each
programming standard
are
discussed in
Section
5.
ANSl/VT-52
Mode may also
be
changed
by
the host computer,
see
Section 5.3.2.12.
3.2.2.6
Smooth/Jump
Scroll
Scrolling
of
data on the screen may take place in one
of
two
ways; smooth scroll
or
jump
scroll.
Jump
scroll
is
the traditional scrolling method whereby lines
of
data move
one
line at a
time
to
make room
for
new lines
of
data entered on the screen.
Smooth scroll
is
a scrolling method whereby lines
of
data move a scan line
at
a
time
to
make room
for
new lines
of
data entered on the screen. Smooth scroll
is
a human engi-
neering feature which allows scrolling lines
of
data
to
be
more easily
read
by
an
operator.
Smooth/Jump
scroll may also
be
changed
from
the host computer,
see
Section 5.3.2.12.
*VT-52
is
a trademark
of
Digital Equipment Corporation.
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