Whether there’s (free) wifi available depends on place and (especially) country. In major cities it’s most of the time no problem getting on an open network.
To keep it ‘legal’: McDonalds, hotels, some restaurants. Just check on the windows for a wifi sticker.
 
What do you mean by difference in using a computer? Computers around the globe are basically the same, except for the OS language maybe.
 
Don’t forget to check your charger if it’s suitable for 220V, and bring different plugs. There are two of them in Europe: standard euro, and UK.

Yes. Many times it is available even in smaller cities, like 100.000 inhabitants or so. Just ask at the local internet cafe if there is such a possibility and where it is.


Basically no. You look into the monitor and type into a keyboard Just don’t forget that Europe uses 220 volts in electrical sockets, not 110.

Everythingis the same over there. Including TCP/IP which is the global language al computers need to use to talk to routers/modems and access the internet. Network security is the same also(wep,wpa,wpa2).

I had a german girlfriend for a month. She was from Hanover and her laptop worked here. The keyboard was a little scrambled. but it worked.