Talk:Cable modem

message: Why Cable Modems (Why Invented, 1980s Oceanic Cable "Roadrunner" Experiments, to use Cable TV Coxial Cable to Access the Internet instead of then still in use 1980s Telephone Modems).  Beginning, a NIC Card with a Coaxial Cable RG9 Connector was installed into a Desktop Computer, a splitter was attached to to the Cable TV Coaxial Cable going to the Cable TV Box, the split coaxial cable went directly to the back of the Desktop Computer's NIC Card RG59 connector.  Software was installed.  There was NO Cable Modem.   Why the Cable Modem, because the cable speed was decreased by the Computer Processor, RAM, Operating System, speed of Hard Drive(s), having to Process "Run" Operating System, Programs, and an Internet Browser AND Process the signals from the Cable, the solution was a "Dedicated" Cable Computer like a Computer Video Cards (A Computer that ONLY Processes Video, Has Own Processor, RAM, FIrmware (Operating System))
The Term "Modem", Modulation Demodulation Device, remained because everybody had used that term for a device to connect by telephone for decades (U.S. Military since 1950s, U.S. Civilians since 1960s), the word Modem became Common Usage for any Device that connected other computers, even when they did not, nor even functioned as a Modulation Demodulation (Modem) Device.
What Cable Modems actually are (computers with a Processor, Flash RAM, RAM, an Operating System in an EPROM as "Firmware". Types, Brands, Speeds of Processors, Flash RAM, RAM Memory are listed at wikidevi)
Cable Modem "Channels" (Download, Upload) (One of the MAIN Reasons why a Cable Modem) 32x8, 24x8, 16x4, 8x4, 4x4, 4x1  
Why "Channels" are Important.  In the Beginning Cable Company Cable Computers (Modems) as "Set Top Boxes" were Computers with limited capability Computer Processors like the 1970s 8088 to only process video and audio from the TV Cable Companies as Download Only of 1 Channel (One Frequency with sub Frequencies for the Many Cable Stations), electronically the entire cable was Download Only.  With the success of the Cable Internet Experiments the one copper core RG58/59 cable had to be shared between the Cable TV Downloads, and the Internet Downloads and Uploads, as having multiple frequencies ("Channels") thru one copper core wire RG58/59 "coaxial cable" (outer braided wire is Radio Frequency (RF)shielding to stop RF Interference from other RF Sources including electrical lines).  The First divisions of the coaxial cable (later named "Bandwidth") was about 50 percent TV Cable, 50 percent Internet with Two Channels 1 Download Channel 1 Upload Channel as 1x1, a speed of almost 1MBps, depending on the Cable Company.
Today, 2019 most Cable Internet Service Providers (ISPs) cables are capable of 24 download Channels and 8 Upload Channels with speeds up to over 600Mbps still using the old RG58/59 or upgraded to RG6 series coaxial cable Cable Company Infrastructure.  Meaning that if you are still using that old 4x1 Cable Modem (Computer) and have subscribed to a Higher Speed Internet Level, you still only get, maybe 10Mbps, not 100Mbps, 200Mbps, 400Mbps, 600Mbps (a 24x8 Cable Modem barely can do 686Mbps), 1Gbps is a 32x8 "Channel" Cable Modem.  This is how important "Channels" of Cable Companies and Cable Modems, Cable Modems as Computers with Modern High Speed Computer Processors, Fast Flash Memory in large amounts, RAM Memory in large amounts ARE to all Internet Users Worldwide.Nakamuradavid (talk) 21:08, 14 June 2019 (UTC)
thread_title: NOT Mentioned

message: Disadvantage '2' seems to be a matter of the structure and practices of the industry in the US rather than any disadvantage with the technology itself. Outside the US, for example in the UK, this practice of 'bundled pricing' exists with providers of DSL+Satellite TV (BSkyB) and now IPTV services (BT) as well as with cable. Generally, prices in the UK for standalone access on cable are as good as for standalone DSL. 
Perhaps a compromise is to say something like "In some areas, cable companies' monopoly over their own infrastructure reduces the competitiveness of the medium when compared to unbundled DSL services, particularly if the customer only wishes to buy internet access." 
Though IMO this is still a matter of commercial practice in specific areas rather than technology and it's relevance here at all is debatable. 86.131.33.172 01:22, 8 January 2007 (UTC)
thread_title:  Disadvantage 2? - commercial practice rather than technology 

message: How fast are people getting cable modem in the US? Here in Honduras I only get 128K maximum and I wondered if it was a limitation of Honduras or cable modems, as at that speed VoIP is fine computer to computer but not good for callas to other telephones, SqueakBox 21:53, 10 December 2005 (UTC)
thread_title: Speed

message: Out of curiosity i was wondering if someone who has satellite TV could also get cable internet or would it be impossible because of the seperate signals? thx-AERODARt
:i just had cable internet installed yesterday, through comcast. i also have satellite tv service through dish network, and i haven't experienced a problem yet. they actually both work pretty well; i'm never going back to dsl. :) 69.246.162.12 11:30, 29 June 2007 (UTC)
thread_title:  Can cable internet and satellite TV coexist? 

message: Regarding the question about whether 128 kbps speed being achieved from the cable modem is a result of the cable modem, no, cable modems have a maximum bandwidth of single digit and possibly upto double-digit mbps (as mentioned in the article too). The 128 kbps maximum bandwidth you are getting would be controlled from the ISP end (sucks doesn't it)
Regarding the question whether a cable modem will work with any cable line, no, it requires a coaxial cable (one used to provide cable TV) of a greater thickness than a mere cable TV line. Also it needs proper insulation from electromagnetic interference. Of course cable TV can be provided over the same cable too but then it can also be provided over a cheaper, less stringent and of course less thicker cable.
Regarding the question about cable internet being possible through satellite TV, cable internet is just a method of mixing the TV signals and the internet signals over cable TV cables and transmitting it to user-premises. You'd need a way to get the internet signals from the satellite here which is another technology called satellite internet.
-- 221.135.246.115 18:54, 17 June 2006 (UTC)
thread_title:  Answers to some of the above questions 

message: This section includes a reference to a disambiguation page. As someone who knows nothing about this technology  (other than, how to turn it back on when my kids turn it off ;) ) I don't know which link I should follow when I hit the page MSO. Could someone who knows this stuff please point this link directly to the intended destination?  Thanks Garrie 11:52, 8 December 2006 (UTC)
replies: text: Fixed.  --67.190.126.219 07:37, 23 February 2007 (UTC)
thread_title:  Section: Cable Modems and VoIP 

message: It seems like the physical piece of hardware known as the cable modem should be described in this article and cable internet service should be described in a Cable internet article. It's odd that the Cable modem article serves as the main article for cable internet Dav2008 14:20, 22 August 2007 (UTC)
replies: text: Agree. Eric Wester 21:33, 27 August 2007 (UTC)
replies: text: Far as I see, the cable internet section hasn't been written yet, and this article is short, so there's nothing yet to split off that will make much more than a stub of a new article.  Perhaps either that section should be written in this article and split off when it's ready to fly on its own, or the separate article should be started with plenty of new material and any scraps from this article that may be useful.  Jim.henderson 03:17, 12 September 2007 (UTC)
replies: text: For that matter, the DOCSIS page contains a lot of material that isn't DOCSIS related (such as an endlessly updated list of who is selling what where and for how much), but would fit better on a cable internet article.--67.190.126.127 05:30, 9 October 2007 (UTC)
replies: text: Ah, so the information is already present, but the articles are not linked by categories, See alsos, or inline links.  This one, for example, has two cats for the digital side of things but none for the CATV side, while DOCSIS is linked to articles about its components but not to ones about how it fits into other systems.  And several of these articles slop over natural boundaries into each others' territory.  So, what's needed is not so much another article, and especially not a split of this article, but better connections and more precise distribution of information among existing articles.  If there's a need for splitting an article, it's to make a list article for the various national DOCSIS implementations.  As it happens, it's all a bit outside my technical expertise (telephone worker) but needs attention from an insider.  Jim.henderson 16:31, 9 October 2007 (UTC)
replies: text: I support the proposal to split (but please be sure to cross-link); as I almost always support article splits but oppose article mergers; splitting allows knowledge to be found (searched & discovered) more effectively and categorized most concisely (even if there is much redundancy), and most completely. Inclusion over deletionism! Shanoman 17:31, 17 October 2007 (UTC)
replies: text: Split what?  Where's the section in the present article that belongs in the proposed new article.  Perhaps you mean split some other article?  Jim.henderson 21:07, 17 October 2007 (UTC)
replies: text: Split out the "cable internet access" to the "cable internet" article and merge in the transfer rates section from DOCSIS.  I went ahead and did it, mainly to fix the DOCSIS article.  —Preceding unsigned comment added by 24.8.35.172 (talk) 22:41, 2 December 2007 (UTC)

text: I've changed the Cable Internet redirect to Cable internet rather than this page, and added inter-wiki links from this page to the other. Additionally, I updated and cleaned up the introduction to the other article somewhat. (I also changed a peculiar capitalisation issue in that article.) Dan Villiom Podlaski Christiansen (talk) 19:25, 26 April 2008 (UTC)
thread_title: Splitting into ''Cable modem'' and ''Cable internet'' 

message: They conquer articles that aren't NPOV, but this article is very pro-cableco POV. --TIB (talk) 18:54, 10 June 2008 (UTC)
replies: text: Not an NPOV issue. Simply a lack of information - feel free to add it. Apteva (talk) 16:48, 27 September 2008 (UTC)
thread_title:  Needs a mention of Sigma and TCNiSO 

message: Appearantly, cable modems are often very insecure, and I heard that some other broadband access methods (xDSL) are much more secure since they have a point to point connection rather than a a connection made in series. See also this post of a guy that managed to hack his cable modem and was able to eavesdrop the entire network (all users). Perhaps worthy to mention in article.
87.131.33.272  — Preceding undated comment added 14:09, 18 October 2014 (UTC)
replies: text: A forum post is not a reliable secondary source. We would need those before proceeding to add assertions to the article, especially contentious ones such as these. Elizium23 (talk) 17:51, 18 October 2014 (UTC)
thread_title: Hacking

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thread_title:  External links modified 

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thread_title:  External links modified 

message: I kind of understand that multiple users in a neighborhood are sharing the same bandwidth when using cable modems, but I don't see why. I had expected there'd be a diagram on Wikipedia showing how cable modem technology works. Even if it didn't describe everything completely, it would have helped. Unfortunately, I can't find the name of the device the cable company owns that talks to a cable modem (the WAN connection), so I can't just google for more information. Could someone with knowledge please add a diagram? Thanks. Ben (talk) 02:12, 15 September 2020 (UTC)
replies: text: , it's called a Cable modem termination system Elizium23 (talk) 02:20, 15 September 2020 (UTC)
replies: text: Thanks! So all the cable modems in the neighborhood connect to a CMTS. Is it through a single physical wire per house? Is the CMTS the issue when people say cable modem bandwidth is shared (not dedicated)? Ben (talk) 23:45, 16 September 2020 (UTC)
thread_title:  Networking diagram would be helpful 

message: Words used would probably not be understood by a normal person reading this reword and rewrite Editor2150 (talk) 00:12, 23 May 2024 (UTC)
thread_title:  Over Technical