In 1979 Intertec Data Systems Corp made an all-in-one Z80 computer with twin internal 5 1/4" disk drives. Note that the display adhesive has started to separate from the CRT and needs to be restored by removing the old adhesive.. Click image for larger view.
The machine itself does not boot yet. The display can be fixed in a manner similar to that when one repairs the ADM-3a terminal (hopefully). Stay tuned.