Cable Modem Service

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Cable Modem Service

• Broadband Internet Access

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Cable Modem Service

• Service of Cable Television Companies
• Deliver 10 Mbps downstream to the home
• Capacity is shared by multiple subscribers, so
  real speed is more limited
• Limited to about 64 kbps to 256 kbps upstream
• Does not tie up telephone line
• Always available

Cable TV Network
Also ISP Functions
Cable Modem
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Cable Modem Sharing in Perspective

• Sharing is Not as Extreme as it May First Appear
• Usually, shared within Blocks of 500 Houses
• Only Some Households in Block will Subscribe
• Only Some Subscribers will be Online at Any
  Moment
• Only Some of Online Subscribers will Send and
  Receive at Any Moment
• Only these will Share the Capacity
• So Sharing Does Not Reduce Speed Unless the
  Adoption Rate is Large

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Cable Modem Service

• Cost is about 50 per Month
• Includes ISP service!
• Installation usually costs 100 to 150 and
  includes a cable modem and a network interface
  card
• Best alternative today beyond V.90 modem
• Cost-competitive with adding a second phone line
  to handle your modem communication