Basic Four 7220

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Basic Four 7220
Manufacturer Basic Four
Model 7220
Lifetime
Introduced prior to May, 1975
Communication
Interface RS-232C
Baud Rates 300, 2400
Display
Size 12-inch
Phosphor P4 white
Refresh Rate 60 Hz
Character Modes
Resolution 80x24
Attributes Normal
Matrix 5x7
Cell 7x9

The Basic Four 7220 terminal was introduced sometime before May, 1975.

The 7220 can only display upper case characters, but uses reverse video to indicate received lower case characters displayed as upper case. Upper and lower case characters can both be transmitted from the keyboard.

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