Star Topology.
The comcast modem is a cable modem not a DSL modem so they cant be compared.
There are ISDN, DSL and Cable
Any modem that the DSL company offers is going to be overpriced and offer underwhelming speeds - certainly nothing like the speeds they tout in their commercials. An easy (and cheap) way to boost speeds is to take matters into your own hands and buy DSL modems yourself, cutting the middle man out of the equation. Shopping online for DSL modems gets you the best deals on the fastest modems. Buying a third party modem through another vendor, instead of the DSL company, saves money, and customers note vastly increased speeds as soon as they get their new modems up and running.
Cable DSL modems are available for purchase from computer electronics stores. Some businesses to try include Best Buy, Newegg, Amazon, Staples, and OfficeMax.
Yes, of course. Most people leave their DSL and cable modems on 24/7.
Cable modems runs faster than DSL. Cable internet supports approximately 30 Mbps of bandwidth, whereas most forms of DSL cannot reach 10 Mbps.
No you can not. Cable modems use RF or Radio Frequency to transmit data, usually converting that RF frequency into fiber optic via a node. DSL or Digital Subscriber lines use electricity like a phone line. You could also say Cable modems use coaxial cable and DSL use telephone wire. The two modems are not interchangeable.
dedicated shared
Do it manually.If it doesn't work use troubleshooting modems, you will get the all the instructions there.
DSL, Cable modems, wireless internet and satellite internet.
Those are 2 different things. There are cable modems and DSL modems. Wireless refers to a type of network which can be based either on a Cable modem or a DSL modem. You can have a wired network, or a wireless network. Wireless networks have typically have had slower transfer rates than wired networks, but the technology is changing so wireless routers are becoming faster in transferring data.
No, DSL modems are meant to receive data directly and are unable to dial. You will need a modem with dialing capabilities to use dial up.