Wireless stuff doesn't really have a modem, it's a wireless accesspoint kinda like this: http://www.tranzeo.com/products/radios/TR-6000-Series
Wireless is generally 900Mhz, 2.4Ghz or 5Ghz. The 2.4 and 5 Ghz stuff is literally just like the stuff you use for wifi at home but has a panel antenna that increases the gain or sometimes a grid for long range stuff. I worked for a Wireless ISP for a couple years. The equipment can easily be purchased if you have the money to do it and it is compatible with their network. However they will still need access to the CPE for troubleshooting purposes and they likely have some sort of IP address assignment.
With that said no they will not be accessing your computer but you will want to buy a router if you don't already have one so that multiple devices can use it. When I worked for the WISP we set one IP address for the CPE and another for the customer to use for their computer or router but they only get one. If they try to sell you a router it's probably a cheap piece of junk they can turn a profit on.
@dennishoddy if you need help or have questions let me know and I am more than happy to help you out.
Wireless is generally 900Mhz, 2.4Ghz or 5Ghz. The 2.4 and 5 Ghz stuff is literally just like the stuff you use for wifi at home but has a panel antenna that increases the gain or sometimes a grid for long range stuff. I worked for a Wireless ISP for a couple years. The equipment can easily be purchased if you have the money to do it and it is compatible with their network. However they will still need access to the CPE for troubleshooting purposes and they likely have some sort of IP address assignment.
With that said no they will not be accessing your computer but you will want to buy a router if you don't already have one so that multiple devices can use it. When I worked for the WISP we set one IP address for the CPE and another for the customer to use for their computer or router but they only get one. If they try to sell you a router it's probably a cheap piece of junk they can turn a profit on.
@dennishoddy if you need help or have questions let me know and I am more than happy to help you out.