IBM System/370 Operator's Reference Manual page 200

Model 125 Operator Console Video Screen
Source: GA33-1509-0 System/370 Mod 125 Procedures
The Video Screen:
Is a 15 in. video monitor.
Is mounted on a separate table and can be rotated through 180°.
Displays numeric characters. upper case alphabetic characters, and special
symbols.
Can
be
manually adjusted for intensity.
Is equipped with a program-controlled audible alarm, which alerts the
operator to messages requiring attention.
Display Format
1- - - - - - - - - - - - - - - - - - - - - - -
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I 56 characters I
r--J :
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1
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:.
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12
1
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I L __
ill
I 4
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lines
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