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Free research papers and essays on topics related to: cable modems
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- Cable Modems: Cable Tv Meets The Internet - 3,872 words
Cable Modems: Cable Tv Meets The Internet Cable Modems: Cable TV Meets the Internet John G. Shaw IS 3348 October 2, 1999 Abstract The Telecommunications Act of 1996 opened the way for cable TV (CATV) companies to become full-fledged telecommunications companies, offering two-way voice and data communications services, in addition to television programming. After passage of the Act, the cable companies were eager to expand into the new fields of business that had been opened to them, especially the rapidly growing Internet Service Provider (ISP) business. The biggest hurdle facing the cable companies is that cable television systems were designed for one-way traffic, and must be upgraded into ...
Related: cable, cable modems, cable television, internet access, internet connection, internet service, internet service provider
- Cable Modems: Cable Tv Meets The Internet - 3,910 words
... downstream traffic travels through the cable modem's Media Access Control mechanism. The MAC mechanism's functions are fairly complex. The MAC mechanism's main purpose is to implement MAC protocols under the direction of the CMTS. MAC protocols are used to time-share the cable media among the various cable modems in a cable data network. The MAC processes can be implemented in hardware, or a combination of software and hardware. Both the CMTS and the MAC mechanism implement MAC protocols to perform ranging procedures to compensate for cable media delays and line losses. The CMTS also interfaces with the MAC mechanism in each cable modem to assign upstream frequencies and upstream time s ...
Related: cable, cable modems, internet access, internet connection, internet protocol, internet service, internet usage
- Adsl Modems - 659 words
Adsl Modems Does the humble telephone lines play a major role in shaping the third millennium? Can a mere pair of thin copper wires twisted around each other transmit Internet data reliably and securely at blazing fast speed, making it possible to view high-quality moving images, sound and vast amounts of data on your personal computer screen or television? The answer is yes, as the growing success of DSL (digital subscriber line) technology abundantly demonstrates. The capacity of a communications channel depends on its bandwidth and its signal-to-noise ratio. A voice connection through a conventional phone network uses a bandwidth of about 3,000 hertz (Hz): from about 300 Hz to 3,300 Hz. A ...
Related: adsl, cable modems, alexander graham bell, personal computer, application
- Another Hole In The Wall - 541 words
Another Hole In The Wall ANOTHER HOLE IN THE WALL Opinion: This was a very interesting article because it seems that everybody That owns a computer has the fear of hackers and viruses. It's a big issue Because people are being attacked and it seems that there is no way out. Many programmers have tried to come up with a game plan so that you can't Allow hackers to break in your computer. Some ideas have risen but none really Seem to totally block the hackers from breaking in your computer. The reason that Your computer can be attacked is because it's so easy. One of the main reasons why viruses are spread so widely is because if you use Windows it is set up in a way by default to allow PC's t ...
Related: hole, file sharing, san francisco, cable modems, summary
- Computers And Tv - 1,793 words
Computers And TV Computer technology: That's entertainment, 2000 VIDEO CNN NewsStand's James Hattori finds out what entertainment might look like in the year 2010 December 31, 1999 Web posted at: 4:00 p.m. EST (2100 GMT) (CNN) -- As we reach the year 2000 and the next phase of the Information Age, it's easy to forget that just 10 years ago, the Information Age was stuck on its launching pad. The Internet was unknown to nearly everyone except university researchers; TV was still patting itself on the back over cable success; films were searching for the next big thing; music was sold at record stores. Now, television and computers are colliding and millions of channels are on the horizon; fil ...
Related: computer technology, computers, george lucas, wars episode, resolution
- Digital Subscriber Line - 766 words
Digital Subscriber Line Digital Subscriber Line new technology that takes advantage of standard copper telephone line to provide secure, reliable, high-speed Internet access. DSL refers to the family of digital subscriber line technologies, such as ADSL, HDSL, and RADSL. Connection speed for DSL ranges from 1.44 Mbps to 512 Kbps downstream and around 128 Kbps upstream. Unlike traditional connections DSL such as analog modems and IDSN, DSL deliver continuous "always on" access. That means multimedia-rich websites, e-mail, and other online applications are available anytime. DSL makes it possible for you to remain online even while youre talking on the telephone-without jeopardizing the qualit ...
Related: digital, subscriber, internet users, cable modems, bandwidth
- Dsl Vs Cable - 1,452 words
Dsl Vs Cable Cable Modems and ADSL Two modem technologies have emerged over the past year for switched data communications services. Cable Modems operate over two-way hybrid fiber/coax and provide user rates as high as 10 Mbps. ADSL Modems (Asymmetric Digital Subscriber Lines) operate over existing copper telephone lines and provide rates as high as 9 Mbps. Both technologies address the large markets for Internet access, remote LAN access for work at home and telecommuting, and network access for the hundreds of millions of personal computers in place today and to be sold over the next ten years. Cable modems may offer more raw speed than ADSL, but that advantage is compromised by inevitable ...
Related: cable, cable modems, pricing strategies, market share, telephone
- How A Modem Works - 951 words
How A Modem Works Abstract This paper has explained in some detail what a modem is and how a modem works. The evolution of a modem, transfer of speeds through various sized modems, and how data transferred has also been discussed. The word modem is an acronym for Modulator Demodulator. Modems accept digital data supplied by the personal computer, and convert it to a modulated analog waveform that can be transmitted over an analog telephone line. Modems also work in reverse. They take a modulated analog wave from the phone line, then convert it to a digital form, then pass it onto the personal computer (PC). Modems, at connection, send tones to each other to negotiate the fastest mutually sup ...
Related: internet service, services digital network, internet service provider, shtml, lets
- In Todays World The Bounds Of Information Technology Are Being Pushed Further And Further Every Day With Local Area Networks - 1,047 words
In today's world the bounds of information technology are being pushed further and further every day. With Local Area Networks spanning into WorldWide Area Networks and globalization happening to every small business with a connection to the Internet the need for alternatives is growing. Technology and hardware are increasing faster than people with the skills to support them are. With this the ways to connect and expand into the Internet are improving as well as the speed of connections. There are many ways to gain access onto today's Internet and discussed here are going to be three common ways such as the modem, the cable modem and Microsoft's WebTV. These three describe represent the nov ...
Related: information technology, network management, networks, technology, world wide, world wide web
- In Todays World The Bounds Of Information Technology Are Being Pushed Further And Further Every Day With Local Area Networks - 1,059 words
... eliver gigabytes of that data per second over hundreds of individual networks. But TV signals consume most of the potential bandwidth. And most cable systems send these signals in one direction only: from the head end to your home. Internet access, obviously, is two-way: Every mouse click, every command and keystroke must travel back upstream. (Cable Datacom News, Cable FAQ's) To become this two-way street cable operators must allocate spectrum on the cable for upstream signals so you can send data from the PC back to the Internet. Typically, the upstream signal is transmitted on a low-frequency band that hasn't previously carried a TV channel so that the two don't interfere. Mainly thou ...
Related: information technology, networks, technology, cable modems, major problem
- Internet Tv - 568 words
Internet Tv ZENITH TO LAUNCH INTERNET TV PRODUCTS BASED ON NC TECHNOLOGY FROM ORACLE LAS VEGAS, Jan. 8, 1997 -- Zenith Electronics Corporation (NYSE:ZE) has joined forces with Network Computer, Inc. (NCI), a subsidiary of Oracle Corp. (NASDAQ: ORCL), to launch a new generation of convergence products designed to enhance the entertainment experience of television. Zenith plans to offer a family of Internet TV products - set-top boxes and integrated TV sets - with interactive capabilities based on NCI's powerful N|C System Software. This move marks an important new direction for Zenith's Internet TV product strategy and is another step toward establishing the software developed by NCI as the i ...
Related: cable modems, world wide, system software, display, telephone
- Network And Internet Connections - 1,439 words
Network And Internet Connections The Internet is a network of networks that interconnects computers around the world, supporting both business and residential users. In 1994, a multimedia Internet application known as the World Wide Web became popular. The higher bandwidth needs of this application have highlighted the limited Internet access speeds available to residential users. Even at 28.8 Kilobits per second (Kbps)the fastest residential access commonly available at the time of this writingthe transfer of graphical images can be frustratingly slow. This report examines two enhancements to existing residential communications infrastructure: Integrated Services Digital Network (ISDN), and ...
Related: internet access, internet connection, internet technology, internet usage, network, network technology, services digital network
- Network And Internet Connections - 1,527 words
... id Fiber and Coax(HFC) networks. Transmission over fiber-optic cable has two main advantages over coaxial cable: A wider range of frequencies can be sent over the fiber, increasing the bandwidth available for transmission; Signals can be transmitted greater distances without amplification. The main disadvantage of fiber is that the optical components required to send and receive data over it are expensive. Because lasers are still too expensive to deploy to each subscriber, network developers have adopted an intermediate Fiber to the Neighborhood (FTTN)approach. Figure 3.3: Fiber to the Neighborhood (FTTN) architecture Various locations along the existing cable are selected as sites fo ...
Related: internet access, internet service, network, network technology, case study
- New Technology - 1,350 words
New Technology In my research, I am focusing on the new technology dealing with computers. This technology includes CD writers, DVD players, digital cameras, and cable modems. I will describe each technology and then how it will effect today's society. Technology is the way of the world now, so improving technology helps to improve the society. CD writers are the wave of the future. What is a CD writer one may ask? A CD writer is simply a technology device that allow one to record information onto a CD and then the CD is used for storage instead of using the hard drive. Why would you want something that records CDs? CD-RWs are a great storage device. You can create valuable backup volumes fo ...
Related: technology, internet access, hard drive, business world, familiar
- New Technology - 1,322 words
... you can pay a monthly rate for unlimited service, you are going to save a lot of money in the long run. This will especially benefit the people in the telecommuting business. Their cost would be approximately three times less than that of an ISBN network of a telephone modem network. WILL IT CATCH ON? Will this new technology catch on nationwide as well as telephone modems have? If you ask me, I would say definitely. These modems will probably catch on at first, to LAN's such as college campuses. These networks will see the greatest advantage in cost. Even if, for an individual user, the cost is a little higher it's worth it. Plus, after a whil, just like all other computer hardware, the ...
Related: computer technology, technology, digital camera, more practical, isbn
- Planning Your Proxy Server Implementation - 2,047 words
... y. Find out the size of the technical support staff and the hours of availability. Ultimately, you'll need to make a judgment call, if you have an emergency, will your ISP be able to offer a helping hand? You need to know if technical support is provided as part of normal service or if it's provided on a paid basis only. Most often there's a sliding scale of basic technical support. Here are a few more items to ponder when making your ISP selection: ä What is covered by the ISP's technical support? ä What isn't covered by the ISP's technical support? ä Does technical support stop on the ISP's end of the communications link or on your network's communications device? Does i ...
Related: implementation, proxy, server, internet users, home office
- The Growing Threat Of Computer Crime - 1,550 words
... throughout a network. Cisco Secure IDS is an ideal solution for companies who need to know if their network us under attack from internal or external sources. Real Secure Manager is an intrusion detection system with capabilities within a familiar network and systems management environment. All RealSource management options include real-time views of suspicious activity, such as external and internal attacks or internal misuse, real-time alarm management through propagated display of network security activity, Realsecure online help for incident response and detailed information abut events, secured communications between the Realsecure manager and all Realsecure engines and agents, and ...
Related: computer crime, computer program, computer system, computer virus, crime, growing threat
- Video Transmission Via Satellite - 1,960 words
... ide a complete software platform for the new service through the company's TV Navigator software. Strategic Partnership Example AOL TV/DirecTV plan to market the AOL TV/DirecTV service to a combined base of 24 million subscribers. The service will provide AOL content in addition to satellite TV programming in one platform. The deal also boosts the broadband ambitions of both companies. Hughes' planned $1.4 billion Spaceway geostationary broadband satellite system will benefit by being able to tap into this customer base well before the satellites built. AOL also said to be considering additional investment in Spaceway. Interactivity EchoStar appeared to have the jump on DirecTV when it c ...
Related: satellite, satellite communications, satellite technology, transmission, video
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