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The 3101 consists
of three work station Elements:
the Video Element,
the Logic Element, and the Keyboard Element (see Figure 1-1) .
1. 2. 1
VIDEO ELEMENT
The Video Element comprises a 305-mm ( 12-inch) diagonal monochrome CRT.
display screen
with a
display screen filter,
a deflection
yoke, an
analog circuit,
a high
voltage control
circuit, and
brightness and
contrast
potentiometers.
Conventional
solid-state
television
technology is used.
The display screen has the following characteristics:
• A presentation of 1920 chara9ters (24 lines of 80 characters)
• A line for operator information (Line 25)
• A block or blinking cursor
• Normal and reverse Video
The Video Element can
be tilted vertically 10 or
1~
of viewing, and can
also be swivelled left or right
in either direction.
1- 4
degrees for ease
up to 25 degrees
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