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Introduction Optical networking promises to revolutionize computing. Not only are the limits which we consider inherent to computers easily bypassed, the framework within which we hold computers and computing is destining for obsolescence. In this article, we address the fundamental mental components of computing – Memory, the Processor, Display and Networking – and examine how advances in the use of light instead of electricity are changing the rules in each. The goal of this exercise is two-fold. First, the reader should be aware how each of the components will change in his/her lifetime. Second, the reader will gain an appreciation for how the sum of those parts will change in his/her lifetime. Lucent Technologies LambdaRouter Blurring the Line In an electrically based computer system the functional lines are fairly clear. The hard drive stores data which is loaded into memory as needed, with the processor (or specialized smaller processors) directing the traffic and doing the math. When the final image is calculated it is sent to the video unit for display. In the world of optical processing, the line between memory, processing, networking and display is blurred, and in some cases, is irrelevant. In optical processing, the is no need for hard drives to store data when the computer is off and RAM to operate on the data. A hologram stores data, is instantly accessible and can serve as the display unit of that which it stores. Networks of holograms are accessible at literally light speed. This text approaches the topic from the framework of computing as we now know it. Specifically, the following components are addressed - Processing, Memory, Networking. Additionally, issues of the market place and a general discussion of optical vs. electrical are presented. |
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EMBA 2002 Group 9: Antonio
Merida-Perez, David Wydila, Heidi
Barnes, Michael Walsh, Chris
Esworthy |