Olaf the Stout, glad you are staying connected.
As for your question, the router has several important functions, most of which I won't go into here. The "security" portion is NAT, Network Address Translation; basically hackers have a more difficult time to actually touch your computer. Other routers use SPI - stateful packet inspection. This where the data you request to the wide-world is allowed back to your system. Everything else is blocked.
Consumer Grade Routers run about $50 US, that include the wired and wireless switch (where you can plug all your computers into).
These are gross over-simplications. I could bore you with the details, but I'd rather let someone else do it for me:
http://www.howstuffworks.com/router.htm
http://www.pcworld.com/article/id,117557-page,1/article.html
DSL is pretty simple (for the home user anyway). Since service can vary from region to region, it's best to ask neighbors about their experiences with Verizon. One concern is that your phone lines are old. If you get noise on voice, then DSL will be negatively effected (sloooooooooow speeds). If you have the means and time, I'd spring for new CAT5e or CAT6 cabling in your home to replace it ($$$$).
Lastly, I'm not a software firewall fan*, but if you are going to use one, ZoneAlarm is a good, relatively simple one.
As for your question, the router has several important functions, most of which I won't go into here. The "security" portion is NAT, Network Address Translation; basically hackers have a more difficult time to actually touch your computer. Other routers use SPI - stateful packet inspection. This where the data you request to the wide-world is allowed back to your system. Everything else is blocked.
Consumer Grade Routers run about $50 US, that include the wired and wireless switch (where you can plug all your computers into).
These are gross over-simplications. I could bore you with the details, but I'd rather let someone else do it for me:
http://www.howstuffworks.com/router.htm
http://www.pcworld.com/article/id,117557-page,1/article.html
megamania said:Besides this problem, how has the switch gone?
I am on a dial-up with old phone lines and it takes forever to do anything on the net. I have long been thinking about Verizon's DSL but always back out. Reading this further scares me.
DSL is pretty simple (for the home user anyway). Since service can vary from region to region, it's best to ask neighbors about their experiences with Verizon. One concern is that your phone lines are old. If you get noise on voice, then DSL will be negatively effected (sloooooooooow speeds). If you have the means and time, I'd spring for new CAT5e or CAT6 cabling in your home to replace it ($$$$).
Lastly, I'm not a software firewall fan*, but if you are going to use one, ZoneAlarm is a good, relatively simple one.
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