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Interconnecting computers: Architecture, technology, and economics

  • Butler W. Lampson
Invited Papers
Part of the Lecture Notes in Computer Science book series (LNCS, volume 782)

Abstract

Modern computer systems have a recursive structure of processing and storage elements that are interconnected to make larger elements:
  • Functional units connected to registers and on-chip cache.

  • Multiple processors and caches connected to main memories.

  • Computing nodes connected by a message-passing local area network.

  • Local area networks bridged to form an extended LAN.

  • Networks connected in a wide-area internet.

  • All the computers in the world exchanging electronic mail.

Above the lowest level of transistors and gates, the essential character of these connections changes surprisingly little over about nine orders of magnitude in time and space. Connections are made up of nodes and links; their important properties are band width, latency, connectivity, availability, and cost. Switching is the basic mechanism for connecting lots of things. There are many ways to implement it, all based on multiplexing and demultiplexing. This paper describes some of them and gives many examples. It also considers the interactions among the different levels of complex systems.

Keywords

Input Channel Asynchronous Transfer Mode Output Link Page Fault Remote Procedure Call 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • Butler W. Lampson
    • 1
  1. 1.Systems Research CenterDigital Equipment CorporationCambridge

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