Can using the mobile internet cause any harm to my computer hardware or software?
there is no problem using internet through mobile..if proper antivirus is licensed and updated than no virus, worms, spyware , malware attack your computer..if it is not updated so please update it or used free version of antivirus ..it will more helpful..
using the mobile internet on your mobile device is about as safe as using internet on your computer, maybe safer. The dangers are the same.
Please specify which browser and mobile device you are using, then we can be more specific and eventually recommend software or strategies to keep your device safe.
Or are you thinking about using your mobile device as modem for your computer, i.e. using the mobile internet on your desktop computer or laptop?
The second option.