Do you mean you have 2 types which is A and N wireless?
If for laptops I believe there is wireless build in unless it is really older generation laptop. If it is for B, G or N you can use an item called wireless adapter which looks just like a thumbdrive that plugs into the USB…
I haven’t seen / use tablet pc’s before but I believe that it should come with wireless / USB. If USB like I say you can use wireless adapter..
If the wireless is A it is a little different as its not compatible with b/g/n.
for more WIFI types and explanation, click here.