A Taxonomy of Internet Appliances

The world is evolving from one in which almost all access to the Internet comes from personal computers (PCs) to one in which so-called Internet appliances (IAs) will make up a greater share of end-user equipment. Today's PC is a general-purpose, highly configurable and extensible device ? an "intelligent end-node" of the sort the Internet's designers had in mind. As such, it allows users much freedom of choice (such as which service provider to use, which Web sites to visit, and which new software to download) in exchange for dealing with associated complexity. An IA is a device connected to the Internet, but beyond that there is little consensus on functionality and target markets. There is, however, general agreement that it reduces the level of complexity seen by the user. A variety of approaches to reducing complexity are being pursued. These fall on a spectrum from totally fixing the function of devices, to automating the configuration of more general purpose systems. In the middle are devices whose functions appear more or less fixed to the user, but which retain some limited capability for upgrade through their Internet connection

Issues in parallel stereo matching

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1988.Includes bibliographical references.by Walter Eisner Gillett.M.S

Connecting Homes to the Internet: An Engineering Cost Model of Cable vs. ISDN

... This report describes the technologies and evaluates qualitative differences between the two approaches. It presents quantitative results of capital cost models based on case studies of the PSICable deployment in Cambridge, MA, and the Internet over ISDN service offered by Internex, Inc. in the San Francisco, CA area. The report finds that cables shared-bandwidth approach has superior economic characteristics. For example, 500 Kbps Internet access over cable can provide the same average bandwidth and four times the peak bandwidth of ISDN access for less than half the capital cost per subscriber. The economy of the shared bandwidth approach is most evident when comparing the persubscriber cost per bit of peak bandwidth: $0.60 for the 500 Kbps cable service versus close to$16 for ISDN. Cable-based access also has better service characteristics: it can support both full-time Internet connections and higher peak bandwidths, such as a 4 Mbps cable service that provides thirty-two times the peak bandwidth of ISDN. The report concludes with an analysis of the barriers to diffusion of cable and ISDN Internet access, including business and policy factors. It finds that the closed market structure for cable subscriber equipment has not been as effective as the open market for ISDN equipment at fostering the development of needed technology. Furthermore, monopoly control of residential communications infrastructurewhether manifest as high ISDN tariffs or simple lack of interest from cable operatorslimits business opportunities for Internet service providers

The Self-Governing Internet: Coordination by Design

Contrary to its popular portrayal as anarchy, the Internet is actually managed, though not by a manager in the traditional sense of the word. This paper explains how the decentralized Internet is coordinated into a unified system. It draws an analogy to an organizational style in which a manager sets up a system that allows 99% of day-to-day functions to be handled by empowered employees, leaving the manager free to deal with the 1% of exceptional issues. Within that framework, it discusses: how the Internet's technical design and cultural understandings serve as the system that automates 99% of Internet coordination; what the 1% of exceptional issues are in today's Internet, how they are handled by multiple authorities, and where the stresses lie in the current structure; and the differences in mindset that distinguish the Internet's self-governance from the management of more traditional communication systems.