Digital library (interview) RAI Educational

Jim Clark

Rome, 13/01/96

"From analogue to digital telecommunication"

SUMMARY:

  • The Internet is an outgrowth of the transformation that has occurred in the telephone system over the last 20 years. The voice system is becoming a data communications system. including images, text, electronic mail and audio (1).
  • In the US the cable TV industry reaches about 65 million homes. The cable companies are beginning to transmit data and Internet services. The PC will connect through a modem to receive data at a much higher rate than through the conventional telephone. So a lot of people will use the PC to communicate through the cable television system to receive the Internet (2).
  • Some countries have a large installed base of PCs, others have not, but have a large base of televisions. So both kinds of devices will continue to be used (3).
  • Network-centric computing is changing the style of accessing and receiving software. In the past you went to a store to buy a new programme. Soon you will visit a service for some new capability like the news or television or a bank statement and you will be automatically delivered a small program written in Java, which will interpret the data that's offered by the service (4).
  • One of the reasons that the financial market is excited about the Internet is they understand that when you have a US$1 trillion industry undergoing fundamental change there are lots of opportunities (5).
  • We looked at the Internet as a way to distribute our software. We knew we had to develop a large installed base of software. So we let people download it free. When a business wants to use the software they are required to pay us a licence fee for each user. This is how we're making our money (6).
  • Microsoft is an excellent company but they can't control the world. There are many opportunities. We have one and we're going to be the best at it (7).
  • The information highway will be paid for by people who need to use it for data communications. The people who get paid will be those who provide the network, and the providers of the network will be the telecommunications companies (8),
  • I think over the next 10 to 20 years data communications will be as uniformly available as the telephone and universal access will be part of it just as it is for voice communications today (9).
  • In the data communications world we have to have many different kinds of standards. In the Internet there's HTML and HTTP. This kind of standard has to be enhanced over time to allow people to have a richer type of interaction and media. As a result, HTML is changing very rapidly (10).
  • Transactions on the Internet will grow. With data encryption technology, it is even more secure than the phone system (11).
  • The standard adopted for interactive TV is irrelevant because the PC can decode any from of digital information (12).
  • If they make the algorithm too complex so that the current computer can't decode it, then they have to build a specialised chip that decodes the signal. (13).

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INTERVIEW:

Question 1
In the past communication was centred around the telephone and old telephony applications. Today something is changing. The telephone itself is changing, moving into something that is no longer analogical. And we have Internet. What is your point of view?

Answer
The Internet is really an outgrowth of the transformation that has occurred in the telephone system over the last 20 years. In the past 20 years telephone communication has become data-oriented. When you make a long distance call to the United States, for example, all of the voice is carried as data over the telephone lines and this has been made possible by fibre optic cables. But these fibre optic cables have 100,000 times the amount of bandwidth or the capacity that is required for voice, so they have much more capability than is needed for just voice. As a result people began to use or licence, some of this excess capacity from the telephone companies to enable carrying data. This is how the Internet was born: the Internet became a system for transmitting data on the telephone lines. The interesting thing is that the voice system as we know it, which was built to be a voice communications system, is now becoming a data communications system. But data is much more general than voice, so data includes things like images and text, electronic mail and moving images and audio and all of these what are called multimedia, so the multimedia communications system of the future is the Internet. In the next five to ten years even the Internet will carry interactive video and you will be able to watch a movie or other kinds of entertainment over the Internet. I believe you will also use it for voice communication.

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Question 2
Until a few years ago there was a lot of talk about interactive television. Now with the availability of a broader band on the traditional connections interactive television is being proposed with the Internet. What is your opinion?

Answer
In the US the cable television industry touches about 65 million homes, about 65 % of the total number of homes. The cable going into the home has been used to carry analogue television, but something is occurring now. The cable television companies that own these cables into the home, are beginning to alter what is transmitted on the cable to make some part of it data, and on this part they are going to make Internet services available. The US has a much larger installed base, a much larger population of people who have cable TV in their home, but this cable TV channel or system is able to deliver data at a very high rate, so there is the capability to connect a personal computer to the cable and to receive data. The personal computer will be able to connect through a modem to receive data through the cable television system and the data communication rate or the rate at which the personal computer is able to get this data is very much higher than the rate that can be received through the conventional telephone. As a result, I think a lot of people will be adopting the personal computer, communicating through the cable television system to receive the Internet. This will mean much more interesting media, much more interesting audio and other kinds of interactive media, such as would be found on a CD-ROM. This is the kind of transformation that is just beginning to occur. If you go another five years beyond that, you can see this system becoming even bigger and being able to deliver movies on demand. I believe video-on-demand and interactive television will come through this system.

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Question 3
Some recent studies have shown that Europe was more ready than the United States to jump on interactive television because, while in the Unites States there was cable TV, the PC and the traditional broadcasting industry, in Europe the PC industry was not so large as in the United States. So everything was concentrated on telecommunicationsand broadcasting. Where do you see the role of Europe in this evolution of interactive television today?

Answer
There are two different ways that people will interact with media, I think. One is through a consumer device such as the television of the future and the other is through their PC. In some countries there is a very large installed base of PCs. In some countries there is not such a large installed base of PCs, but there is a large installed base of televisions. I believe the television of the future will have the ability to interface with the Internet. I know some companies preparing televisions that have the ability to retrieve from the Internet, the World Wide Web (WWW). I think this will be the main way in which the ordinary consumer interacts with the Internet. But the PC will continue to be a home device as well as a professional business device and the PC will also retrieve television programming and so forth from the network. I think you will have these two kinds of devices and they will both exist for the ordinary consumer who doesn't have a computer. The professionals may decide that they want to interact with the network through their personal computer in their home and also be able to watch TV on their personal computer.

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Question 4
Some say that we are at the beginning of a new era of computing. People are using labels like "net-centric computer" as something that will take the place of the PC. There are wide opportunities for many companies today and Microsoft is no longer in the centre of this business. The issues regarding Sun and Hot Java have probably put Netscape at the centre of this big change. Some people are also calling Netscape the new operating system. How do you see this change in computing from the computer perspective?

Answer
The personal computer was basically born in the last 15 years - in 1980 almost had no-one had a PC and now it seems as though almost everyone has a PC, so the PC has become the central device. I think it will continue to be one of the central devices for accessing information. TV will also be a device for accessing information and media, but the PC will continue to be very important. From a business point of view, the PC will be the dominant system. So there is a change occurring in the way people get the software that operates on this PC. Some people call this change network-centric computing, but whatever you call it, it's changing the style of accessing the software and receiving the software. There is a new language called Java. In some ways it is just like old languages, but it has got some unique features that make it more suitable for transmitting programs over the telecommunications system. One of the ways that we see the change occurring is that whereas today you may go to a software store and buy a CD-ROM or a diskette to install your software on your computer, we think in the future you may visit a service for some special, new capability like the news or for television or for your financial statement from your bank. When you visit this service you will be automatically and transparently delivered a small program, a computer program written in Java. This program will interpret the data offered by the service. So rather than going to the software store to buy a program that allows you to access the service, you use some general system such as Netscape to interact with the service and over this channel you are then delivered this program and the program then determines how to access the data. You might have your bank account and your financial statement delivered through a service that you access over the Internet and then this service delivers the program that's the spreadsheet program that allows you to build your data and you may be able to pay bills and to move money from here to there. And there may be other kinds which will allow the delivery of a program that determines how the service is used so the program gets delivered with the service.

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Question 5
Some people are saying that the financial market is reacting with too much optimism with regard to the Internet, Netscape, and in general. Do you think they are over-optimistic?

Answer
One of the things that is very important is that we have a telecommunications system in the world that is a US$1.2 trillion industry. It is one of the world's largest industries, perhaps the world's largest single industry. This telecommunications industry is going through a fundamental transformation, a change from a voice-oriented network to a computer-oriented network. The first step in this transformation is the Internet. One of the reasons that the financial market seems so excited about the Internet is that they instinctively understand that when you have a US$1 trillion industry undergoing fundamental change there is lots of opportunity - there is also lots of opportunity for failure, but there is lots of opportunity for success. This is one of the reasons I think that the stock markets have put such high value on companies such as Netscape. They believe in the possibilities of a company such as this.

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Question 6
Regarding new business models: you have experimented with Netscape - it is a new model of distribution of your product, of your software. Some say that your software is free, others have to pay. As a business model how do you see this novelty of giving software almost free to some people?

Answer
Netscape started as a very small company with a clever idea, but the Internet presented an opportunity. And the opportunity was to allow us to distribute our software over this network. Now this network is available all over the world. At the time we started Netscape, there were 25 million people connected to the network. Now, almost two years later, there are 60 million people connected to the Internet. So we looked at the Internet as a way to distribute our software. We knew that in order to be competitive with a company like Microsoft, which had such a large installed base and such large world recognition, we had to somehow develop a very large installed base of software. So we chose to let people download our software free. The software has a licence agreement that tells the customer this is for your evaluation, this is not truly free. Now, of course, this licence agreement for an ordinary individual is OK. We don't care if the ordinary individual wants to use the software. When a business wants to use the software - and this is where most of our opportunity and our growth is coming from, from the use of our software inside a business - these businesses are required to pay us some kind of licence fee for each user. This is how we make our money. But an interesting point is that we have now 20 million users of our software around the world and this is all in a little over one year. This has never happened before, it is a unique business model, a unique development for a company to make its software so widely available and expect to make money. There were many people who thought that perhaps I was insane for using this kind of business model, but it has turned out to be very successful.

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Question 7
Could this be the key to the fact that you are still hiring and Microsoft has begun to lay people off.

Answer
It is hard for me to believe that Microsoft is laying people off. I think Microsoft is a very high quality company and will continue to be very successful, but that does not mean that we won't be successful. There is room for a new kind of company and that's our kind of company. Microsoft is an excellent company but they cannot control the world. The point is that there are many opportunities in the world and we have one and we're going to be the best at it.

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Question 8
The future of telecommunications relies a lot on cables and there has been a lot of discussion about who is going to pay for the Infohighway. Some people say that the government should pay, others say it should be a matter of private industries. What do you think?

Answer
Telecommunications is a business. Telecommunications is delivering data or connecting people so that they can communicate data. This is a business opportunity. This is what telecommunications companies will do in the future to make business. In addition, of course, telecommunications companies will make business with voice communications but they will also offer data communications. The information highway that everyone refers to - I call it the Internet - will be paid for by people who need to use it for data communications. The people who get paid will be those who provide the network, and the providers of the network will be the telecommunications companies, the telephone companies such as Stet or Telecom Italia or France Télécom or the local exchange carriers in the United States. There may be others offering data communications services but the basic industry will be the existing telecommunications industry.

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Question 9
Do you think that this will grant universal access to everybody?

Answer
One of the concepts of the telephone system is universal access. Universal access means everyone gets the opportunity to have a telephone. I think the same will also be true in the future for data communications but not everyone needs data communications to their home today. Businesses need data communications; businesses will have data communications access, and over the next 10 to 15 to perhaps 20 years data communications will be as uniformly available and universal access will be part of data communications just as it is for voice communications today.

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Question 10
HTML is the standard of telecommunication data on the WWW. There have been a lot of changes since the first release and there has also been some divergence between the standards released by the various commissions of the Internet and, for instance, your own of Netscape Navigator standards. What do you think will be the future of standards?

Answer
In the voice communications system, in the telephone system, the concept of a standard is very important in order to have everyone able to talk to everyone else. But even in our lifetime, even in the last 15 years, some telephone system did not talk well with other telephone systems. So the evolution of voice communication standards has been a very important part of allowing everyone to communicate anywhere in the world. In the data communications world the picture is much more complex because we are dealing with not only voice, but images and text and electronic mail and audio and video. These are all forms of data. So in the data communications world we have to have many different kinds of standards and many different kinds of interfaces, so it is a much more complex system. In the Internet there is a standard called HTML and HTTP. HTML means a mark-up language, it's the language for transmission between two places on the Internet, on the WWW. This kind of standard has to be enhanced over time to allow people to have a richer type of interaction, richer kinds of media, so it has to change, it has to incorporate newer and newer kinds of technology such as voice and video. And as a result, HTML is changing and in some cases it is changing very rapidly. As a company, Netscape feels that it must evolve this standard very rapidly because this is part of what makes the world change. You add new capability, people get more functionality, more capability in their WWW system, in their Internet access and therefore people can do much more interesting things, so we think it's very important to have this kind of change.

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Question 11
Do you think trade and the commercial communication on the Net will grow? There have been a lot of questions about shopping on the Net, because of the problem of security and problems like seeing and touching the things they are going to buy. Do you think that the trade on the Net will have a future?

Answer
Absolutely. When we go to the automatic teller machine or we go to the bank today we present a card and we get our money. We conduct lots of business electronically. Of course, electronic business means data being communicated and information being communicated over telecommunications wires. The Internet is the world's largest telecommunications system for data. So it is natural to expect that the Internet will become a system on which we do financial transactions. People have lots of concerns about the Internet; one of the major concerns is the security of the Internet. But in fact the Internet, with data encryption technology, is much more secure even than the phone system. The telephone system is insecure because the telephone company operates the phone system and when you have a voice conversation that's converted into data and goes through these telecommunications wires it is not encrypted at all, so someone could pick this data up and understand a conversation. An encrypted telecommunications system over the Internet is very safe. Just to illustrate this, I know of at least three major world banks who are going to be offering the ability to do all types of banking transactions over the Internet: buying stocks, moving money, doing large transfers of money, and paying bills. I think it's a very safe system and over the course of 1996 I think we are going to find lots of companies beginning to offer goods and services that can be paid for over the Internet very safely using your smartcards and other kinds of technology - credit cards, smartcards, debit cards etc. It is a very powerful system that will be used for this and I think 1996 will be the first year in which major business is done over the Internet.

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Question 12
Lately the FCC has released the standard for high definition TV. And it is not compatible with PC standards. What do you think about this?

Answer
In the United States, the FCC, the Federal Communications Commission, has worked for at least seven to eight years trying to define some system for high definition television. When they first started this effort, they were thinking entirely analogue TV, just like current TV but with a better picture. In the last 7 - 10 years, the world has gone from being analogue-oriented to primarily data oriented, so future high definition TV will be digital. The new standard being proposed by the FCC and being endorsed by the FCC will be a digital standard. A digital standard means the data arrives at the television set and there is some special decoder that assembles this data and makes a picture. Now this kind of digital capability can easily be interpreted by a computer, so future computers will be able to decode this high definition television signal. The issue will be how big the screen will be, but they will be able to interpret this data.

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Question 13
Do you see in the MPEG4 standard the possibility for interactive television?

Answer
Digital data delivered in moving picture form is digital television and being able to interact with that means being able to stop and start and do as you will. So the format that the data is encoded in is irrelevant in that sense. The important thing about computers is that they are programmable. And when video data becomes interactive and digital, you are able to program different algorithms for receiving different kinds of signals. If they make the algorithm too complex so that the current computer cannot decode it then they have to build a specialised chip that decodes the signal. So today you have MPEG2 chips, you have MPEG algorithms that run on Pentium PCs, so it's always a trade-off. The more complex the algorithm, the more you need a specialised chip. A new chip or a new technology that's better for higher compression of images might be invented and it may require a specialised chip. Perhaps also five years later you no longer require a specialised chip but can use a general purpose chip.

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