This is the paper tape reader that Data General offered as an optional peripheral on its Nova minicomputer line through the 1970s.
It's an optical reader with a single high intensity incandescent light source and nine photoreceptors, one for each of the eight data channels and one for the sprocket holes (the sprocket channel serves as a strobe). It uses a friction capstan/pinch roller assembly to move the tape and an electromechanical brake to stop it.
Basic reading speed of this device was on the order of a few hundred characters, or frames, per second. Control of the device was accomplished by populating pre-wired spaces on the Nova Basic I/O Board.
This device is currently installed in the
system, although both the
have the required logic to
handle the peripheral.