Can my bike have disk brakes fitted? I just bought this bike and I want to put disk brakes on. I searched on the web for answers but I only could find a bad picture and I couldn't see if it had the same holes at the sane please as my bike. So my question is is my bike able to have disk brakes?
No  Those lugs are for mounting a rear mudguard/fender or a rear rack, not a brake caliper.

They are far too weak for a caliper, too close to the axle and would be torn off quickly by the leverage if you did somehow use them to mount a caliper.  

Remember that rear brakes are only 5-10% of your overall braking.  If you desperately want to add discs to this bike, either find a front fork with disc brakes, and a suitable front wheel with a rotor.

Otherwise you need to look out for a newer/better bike.