EAI 580 Reference Handbook page 42

oscilloscope and a permanent record can be obtained by photographing the
oscilloscope trace. X-Y plotters, such as the EAI 1110
VARIPLOTTER~,
or
strip chart recorders, such as the EAI 8875 RECORDER, can also be used to
display problem variables. These readout devices are connected to the 580
Computer by means of the connectors provided on the connector panel (Figure
1.16) located at the rear of the computer.
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