Introducing
the
HP
2624A
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The
HP
2624A Display Terminal (figure 1-1)
is
a
versatile
alphanumerics
CRT
terminal
that
offers
the
following
features:
•
'lWo
Separate
Data
Communications
Ports
(one for
the
host
computer
and
one for
an
external
printer)
•
Full
Duplex MODEM,
Full
Duplex Hardwired,
Half
Duplex
Main
Channel,
and
Half
Duplex Reverse Chan-
nel
Point-to-Point Operation
With
Full
Pacing
Mech-
anisms
•
Programmable
Record
Separator
and
Unit
Separator
Codes.
• Optional
Forms
Copy
Integral
Printer
(includes
both
compressed
and
expanded
print
modes)
•
Eight
User-Definable
Function
Keys (with 16-character
user-supplied screen labels)
• User-Definable _ Key
• Extensive
Forms
Design Capability (field definition, dis-
play enhancements, line
drawing
set)
• Seven
National
Keyboards
• Line
Drawing
Character
Set
• Optional
Math
Symbol
and
Large
Character
Sets
• Screen
Labeled System
Function
Keys (for selecting
modes
and
performing
other
terminal
control functions)
•
Menu-Driven
Terminal
Configuration
(no
physical
straps;
all
configuration performed
either
programmati-
cally
or
through
keyboard
entries
into formatted
menus
displayed on
the
screen; configuration
data
maintained
in
non-volatile memory)
•
Full
Editing
Capabilities (insert/delete/clear line
and
in-
sert/
delete character)
•
Display
Enhancements
(inverse
video,
blinking,
underlining,
half
bright,
and
non-displaying
security
mode)
• Adjustable Margins
and
Tab Stops
•
Programmatic
Cursor Sensing
and
Addressing
• Easy-to-Use Keyboard With
Separate
Numeric Key
Pad
•
Character
or
Block Mode Operation
•
Extensive Self-Test Capability
Figure
1-1.
HP
2624A Display Terminal
THE KEYBOARD
The keyboard
of
the
HP
2624A (figure 1-2) is logically
divided into five major groups
of
keys.
Alphanumeric
Keys-The
layout of these keys
is
similar
to
that
of a
standard
typewriter
keyboard. These keys
are
used for
entering
alphabetic
and
numeric data, ASCII con-
trol
codes,
and
the
special symbolic
and
punctuation
characters such
as
()?
% &
and
• .
Numeric
Pad-The
numeric
pad is located to
the
right
of
the
alphanumeric
keys. The layout of
this
key pad
is
similar
to
that
of a
standard
office calculator. These keys
may
be used for high-speed
entry
of large
quantities
of
numeric
data.
Cursor
Control
Keys-This
group of keys is used for
moving
the
cursor around on
the
screen (up, down, left, or
right)
and
for controlling
what
portion of display memory
appears on
the
screen (home up, home down, roll up, roll
down,
next
page,
and
previous page).
Edit
Control
Keys-These
keys are used for
inserting
and
deleting characters
and
lines
in
relation
to
the
current
cursor position.
Function
Keys-These
keys (labeled _
through
m)
perform
different
functions
depending
upon
which
keystrokes
have
been performed.
At
any
given time,
the
applicable labels for
these
keys appear across
the
bottom of
the
display screen.
1-1
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