How to interface photoelectric sensors to computer?

I am working on a project where I have to connect a photoelectric sensor to the computer. Computer should know if there is obiect or not

This is my plan to connect a sensor to the computer


View attachment 164038
Sensor Electrical data
response time / release time < 1 ms
voltage supply range +Vs 12 ... 30 VDC
current consumption max. (no load) 40 mA
current consumption typ. 30 mA...

How to interface photoelectric sensors to computer?