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How High-speed Dial-up Works
Dial-up connection About while our surfing the Internet ,[object Object],What is Dial-up connection? ,[object Object]
The average file size for Web content is getting larger.
More people are using broadband connections that can handle a bigger load, so Web sites feel more comfortable bulking up their pages.,[object Object]
Your request is routed though your ISP to the Web.
The high-speed dial-up data path Acceleration servers speed up the dial-up data transfer using several techniques.,[object Object]
The key element of High-speed Dial-up Works how a typical acceleration server compresses different file types ,[object Object],     message, the acceleration server compresses the text on the fly and sends it  down your modem line. Typically, text will compress at least 50 percent using  on-the-fly techniques. ,[object Object],     banner ads, the acceleration server reads the image from the Web site and  recompresses it to reduce its size.Typically, the image file size shrinks       anywhere from 50 percent to 90 percent in the process. ,[object Object],    compression has already taken place. For example, an MP3 file is already     one-tenth the size of the original track on the CD . It is not possible to compress      the file any further in a quick way. 
 Filtering and Caching Filtering ,[object Object],Filtering ,[object Object],[object Object]

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dial-up

  • 2.
  • 3. The average file size for Web content is getting larger.
  • 4.
  • 5. Your request is routed though your ISP to the Web.
  • 6.
  • 7.
  • 8.
  • 9. It is called server-side caching that Instead of constantly requesting the same page, the acceleration server takes note of which Web pages are being commonly asked for by all subscribers, and it saves time by eliminating redundant requests.
  • 10. There is a second side to caching -- client-side caching . Internet browsers like Explorer or Netscape are made to cache frequently viewed pages to cut down on load times.Client-side caching
  • 11.
  • 12. As an example, HowStuffWorks came up three times faster with high-speed dial-up. For the complete results, see the chart below. With High Speed Dial-Up With Dial-Up Web Page/ Original Load Time (seconds)/Cached Load Time (seconds) Web Page/ Original Load Time (seconds) Amazon.com/39.05/14.05 CNN.com/32.57/9.32 Ebay.com/40.38/34.2 Google.com/3.15/1.65 Google search (100 results)/9/7.42 HowStuffWorks.com/31.78/18.7 NetZero.com/16.29/10.53 Yahoo.com/12.51/7.1 Amazon.com/49.29 CNN.com/72.4 Ebay.com/57.68 Google.com/8.08 Google search (100 results)/10.45 HowStuffWorks.com/92.3 NetZero.com/33.26 Yahoo.com/26.81