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Unlikely, but i do know that there is a wireless receiver for computers to pick up wireless controllers and headsets.
No, unless that wireless card is a bluetooth adapter some computers will have it built in but if you don't know it doesn't.
If you want to find cheap computers, look online. You can find computers that are cheap only in price if you know where to look. Try well-known auction sites where you can pick up used or refurbished computers at deep discount prices. There are also sites that sell overstocked items, and you can find cheap computers at these web pages as well.
one with no wires? wireless? which would mean you need a wireless router? i think an AD HOC network is the simplest. It allows two computers or devices to talk to each other without needing a middleman aka wireless router. as far as i know only 2 computers can be used in an AD HOC Network
Wireless aircards are basically cell phones for computers. The speed is better than dial-up not usually as good as DSL or Cable. I know that there are cards you can buy for laptops to runa wireless internet,
A USB adapter lets you have wireless internet if you know the server your trying to connect to has no password. If it does you have to know it
You can turn wired connection in wireless. If you want to turn wireless connection in wired you will need a particular router for that. The only configuration I know capable of such thing is so called "bridge". Bridge allows to to extend signal, and because almost all routers have LAN switch built-in it technically converts a wireless signal in wired as well as wireless.
Well I don't know about that but something similar is getting a wireless repeater relay, that should double the distance of your original router if that's what you're looking for. Hope that helps.
i know we linksys wireless-A,wireless-B and wireless-G.
Most wireless routers also allow you to plug in 4 to 8 other Ethernet cables. It would not be a router otherwise, it would simply be a wireless access point. The cable connections are also faster than the wireless (at this point).
If they are monitoring-only, you can't tell. If they are using your wireless to surf the web, any monitoring software will tell you. You can also check your DHCP server for unknown clients and watch your network neighborhood to see if computers you don't know are popping up. I have an open wireless (intentionally) and often see other computers in my network neighborhood.
Unfortunately, there is not quite enough information in your question to give it a proper answer. I can answer the question, and vary my answers depending on the circumstances. If you live in an apartment that provides WIFI (or wireless Internet service) to the tenants, then having your own computer with a wireless card attached to it would most likely connect you to the Internet. There is a caveat to that, however, which is 'security.' If the WIFI has security enabled (most do) then you will have to know or have access to, the security code to access the WIFI. However, if there is no wireless broadcast in the building, and the four computers are connected on a "wired" router, then no wireless card will get you on the Internet at all.