Yes, you can it's exactly what (wireless) routers were made for.
Wireless routers are certainly needed in this day and time for proper use of the Internet. Any BestBuy or Wal-Mart will carry the routers and help you get exactly what you and your business needs.
Routers that are classified as N routers contain three MIMO radios and antennas; this is the primary characteristic of a Wireless N routers. These are made by companies like Belkin, Linksys and Netgear.
No, With most wireless cameras; they rely on a wireless routers signal to work.
Wireless N routers have better range and much better transfer speeds than G routers.
yes
Faster Wireless Computing is possible with the wireless n routers. Wireless routers can be very confusing to most consumers. Walk into any store and there are dozens of wireless routers stacked high for inspection. At one time the wireless g routers were the standard. Now more consumers are opting for the higher speed wireless n routers. Those who are ready to upgrade their wireless router should definitely purchase the wireless n routers that support the 802.11a/b/g/n WiFi.
Routers do not require presence of other computers to work. You can have even a single router in your network with no computers connected and will still work.
Yes, they can. It's called "bridge".
Virtually any wireless router will work. If it works for a laptop, it will work for your iPod touch. The most common wireless routers are Linksys, NetGear, and 2wire, just to give you a hint at what most people are using as wireless routers these days i find that 2wire works the best and linksys doesnt work at all for my iPod touch.
No they do not.
Wireless n router is a device that offers the capability of having wireless internet. With much faster speed. I have never tried this type of router so not sure if this is actuate of not.