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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here

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To: Darren DeNunzio who wrote (3646)	5/12/1999 2:25:00 PM
From: Darren DeNunzio	of 12823

The Convergence of Television and the World Wide Web An interesting point.... Television will become a subset of Java ? I wont even go there ! The full article can be found at vt.edu:10021/J/joacosta/WWWTVsummary.html Technical Issues Companies are attempting to solve the complex technical issues that encompass WWW television. Developers are trying to come up with standards for the transmission of television data over the WWW. Different companies are coming up with proprietary versions of HTML for TV (sometimes referred to as TVML). In the future, a consortium may be able to select the most useful version of TVML and establish this as the standard for WWW television (Yoshida 1996). TVML may soon be replaced by a subset of Java specifically created to handle television transmission. Java has several advantages over TVML because it is a fully functional programming language. At this point there are some technical issues that still need to be resolved before Java can be successfully used. WWW television set-top boxes have an extremely large memory capacity and support only 2 Mbytes of memory. However, Sun Microsystems claims to have come up with a way to allocate the scarce memory resources and run Java applets on set-top boxes (Yoshida 1996). Just as Java has become more popular over traditional WWW channels, it may establish its claim to be an integral part of WWW television. Another major issue concerning WWW television is bandwidth. Bandwidth refers to the amount of data that can be transferred over a line into a computer or television set. Currently, most computers are connected to the Internet via telephone modems that connect to the Internet at 28800 BPS. This is clearly not adequate to facilitate the transfer of video (7 seconds of video can be as large as 1 MB). One of the reasons aggressive companies like Microsoft desire to invest in cable companies is because of the high bandwidth capabilities of coaxial cable. One possible alternative for supplying video is asymmetric data transfer. Symmetric data transfer means that bandwidth going into (downstream bandwidth) the set-top box is equal to the bandwidth coming from (upstream bandwidth) the set-top box. In asymmetric data transfer, the downstream bandwidth is much larger than the upstream bandwidth. This allows a great deal of data to enter the set-top box. The small amount of data coming out of the box may be for user inquiries and billing information. An example of this would be a cable that is capable of a downstream bandwidth of 40 MBPS and an upstream bandwidth of only 2 MBPS (Theodoros 1997).

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