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Proceedings of the IEEE

Issue 4 • Apr 1993

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Displaying Results 1 - 9 of 9
  • The changing nature of disk controllers

    Publication Year: 1993, Page(s):586 - 594
    Cited by:  Papers (1)  |  Patents (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    The evolution of the disk controllers that interface disk drive storage devices and subsystems with their hosts is reviewed. With magnetic disk storage density increasing by over five orders of magnitude in 37 years, the nature of the controller and its functions has undergone a significant change. In the 1960s, introduction of the IBM 360 and 370 systems led to architectures oriented to mainframe... View full abstract»

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  • DASD trends: cost, performance, and form factor

    Publication Year: 1993, Page(s):573 - 585
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1124 KB)

    By examining trends in disk technology, performance, reliability, and price and comparing those trends to those of competing technologies, the authors conclude that magnetic disks will be useful for the foreseeable future. Key to the survival of magnetic disks is the use of low-cost logic and memory to enhance the performance and function of the disk subsystem, and rapid adaptation of disk technol... View full abstract»

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  • Ernst Weber: bridger of cultures

    Publication Year: 1993, Page(s):558 - 568
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1264 KB)

    The accomplishments of Ernst Weber, who was born in 1901 in Vienna, are discussed. Weber earned doctorates in both physics and electrical engineering and worked as an engineer for Siemens-Schuckert before moving to the United States in 1930. For the next 27 years he taught and did research at Polytechnic Institute of Brooklyn. There he built up an outstanding graduate program and made important co... View full abstract»

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  • Strained layer heterostructures, and their applications to MODFETs, HBTs, and lasers

    Publication Year: 1993, Page(s):493 - 556
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5728 KB)

    Recent developments in strained layer epitaxial systems are reviewed. Their interest stems primarily from the additional degree of freedom that strained layers provide in the design of heterostructures and devices, which has led to device structures that can be tailored to a particular application with, in many cases, performances that are and out of reach with lattice-matched systems alone. With ... View full abstract»

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  • Comments with reply, on `Pulse propagation in a linear, causally dispersive medium' by K.E. Oughstun

    Publication Year: 1993, Page(s):631 - 639
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    The commenters describe two numerical methods for calculating quantitative results for short pulse propagation in dispersive media calculated using an asymptotic method in the above-titled paper (see ibid., vol.79, no.10, p.1379-1390, 1991). The author replies that unbeknownst to them, the commenters have provided an independent verification of the complete accuracy of the description of ultrashor... View full abstract»

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  • The emerging role of flexible media

    Publication Year: 1993, Page(s):595 - 606
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1060 KB)

    The evolution of systems that use flexible magnetic media for data storage is reviewed. The exponential increases in performance of these systems has imposed continually changing requirements upon the media. Because of the great diversity in the market requirements for tape systems, developments are addressed by market segments, the corresponding advances in magnetic tape design and manufacture ar... View full abstract»

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  • The emerging paradigm shift in storage system architectures

    Publication Year: 1993, Page(s):607 - 620
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1396 KB)

    It is argued that currently dominant, large-scale storage architectures, built around central, shared storage systems with CPU-connected devices, are reaching economic and technological limitations and no longer meet performance, capacity, and transparency requirements. Models of historical scientific and technological paradigm shifts are reviewed, and the reasons why the authors believe such a pa... View full abstract»

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  • MaSSIVE: the Mass Storage System IV Enterprise

    Publication Year: 1993, Page(s):621 - 630
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (932 KB)

    The Mass Storage System IV Enterprise (MaSSIVE) a fourth-generation mass storage system that provides a file system service to teraflops computing systems, is described. A bitfile managed by MaSSIVE can be a complete, self-contained Unix file system specific to a particular MaSSIVE client. MaSSIVE will stage whole file systems from archival storage onto online storage devices and then provide its ... View full abstract»

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  • Comments, with reply, on `Planetary influences on electrical engineering' by R.N. Bracewell

    Publication Year: 1993
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    The commenter adds an example of the influence of astronomy on electrical engineering to those that appear in the above-titled paper (see ibid., vol.80, no.2, p.230-237, 1992). He points out that except for a factor of approximately 10, Bode's law of planetary orbit radii is quite similar to Bessel function radial units of first-order cylinder functions of the first kind, such as appear in harmoni... View full abstract»

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North Carolina State University