On examining the photos a bit closer, I can see that there are motor excitation lamps on the panel for 3 axes (X, Y, and Z), and that there is an old Fanuc tape reader just below the operator's panel.

That makes this a 3-axis NC control with pulse motors, but it's impossible to tell if it can make interpolated moves or not. A drilling machine wouldn't need to interpolate, but a 3-axis mill would.

I would be interested to see what the backside of the tape reader looks like. There should be a circuit board with a bundle of wires going back to one of the main boards. That cable may have some kind of BTR interface already installed, which can be connected to a PC.

It may be possible to install a BTR board like the one made by Advanced Digital Research (the AMI, or "Advanced Machine Interface"). That board has memory and an RS232 serial port that can be connected to a PC with almost any kind of DNC software.