Tandy TRS-80 Model 4
A TRS-80 Model 4 plays the part of a Phalanx XR-12 computer on which Chuck tries to read a disc that will prove his mother's innocence.
The Phalanx XR-12 computer takes rather ridiculous triangular disks.
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![](/snapshots/chuck_s4e7_trs80_model4_3.jpg)