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IEEE Spectrum

Issue 10 • Date Oct. 1993

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Displaying Results 1 - 9 of 9
  • Virtual reality is for real

    Publication Year: 1993, Page(s):22 - 29
    Cited by:  Papers (17)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1357 KB)

    Some current applications work in the computer-rendered environments known as virtual reality (VR) are examined. Caterpillar Inc., a manufacturer of earth-moving and construction equipment is using VR to assess interior visibility on new prototypes. The Big Three among US automobile makers are joining with a US Army vehicle center, United Technologies' automotive division, the University of Michig... View full abstract»

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  • A 'room' with a$ 'view'

    Publication Year: 1993, Page(s):30 - 33
    Cited by:  Papers (9)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (487 KB)

    An immersive virtual reality system called the CAVE is described. To match virtual reality to real tasks, researchers built this smoothly functioning walk-in system mostly from off-the-shelf components. The CAVE represents a new model for the design of virtual reality systems, one that offers several advantages over existing models. CAVE users do not need to wear helmets, don bulky gloves and heav... View full abstract»

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  • 'Prototyping' the Hubble fix

    Publication Year: 1993, Page(s):34 - 39
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (613 KB)

    The use of virtual reality techniques to check out the positioning of the corrective optics to be installed in the Hubble Space Telescope is discussed. The basic optical and mechanical configuration of the telescope, and the optical bench, named the Costar (Corrective Optics, Space Telescope Axial Replacement), which will be deployed in the focal plane volume of the telescope, are described. The p... View full abstract»

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  • The solid fuel-cell future

    Publication Year: 1993, Page(s):40 - 44
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (721 KB)

    The third generation of fuel cells, which is expected to provide clean, quiet power for customers and electric utilities alike, is discussed. The principle of the fuel cell is explained. Three basic designs of solid oxide fuel cells that are being developed-planar, monolithic, and tubular-are described. Commercialization of the technology is considered.<> View full abstract»

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  • Adapting laptops to data acquisition

    Publication Year: 1993, Page(s):45 - 47
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    It is explained how portable computers, which lack expansion slots, can instead be made to accept medium-speed data through their parallel ports. The advantages of portables are recalled, and methods for attaching data acquisition instruments to personal computers are reviewed. The ability of the parallel port to serve as a data acquisition interface capable of performance substantially above that... View full abstract»

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  • Flash memory goes mainstream

    Publication Year: 1993, Page(s):48 - 52
    Cited by:  Papers (6)  |  Patents (163)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (941 KB)

    The operation of the flash memory, which has matured over the last five years from a novelty product, is described. Both dual and single supply voltage devices are considered. Flash memory cycling, data reliability, program/erase algorithms, and blocking are discussed. Three approaches to flash memories are examined. The uses of these devices and some new architectures are considered.<> View full abstract»

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  • Filing in a flash

    Publication Year: 1993, Page(s):53 - 54
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (271 KB)

    A nonvolatile, rugged, sequentially accessed flash memory that provides an attractive solid-state alternative to disk drives is described. The advantages of the NAND EEPROM (electrically erasable and programmable read-only memory) for file storage, including mass memory storage, are discussed. Its reliability and cost-effectiveness are considered.<> View full abstract»

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  • Structuring databases for analysis

    Publication Year: 1993, Page(s):55 - 58
    Cited by:  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (601 KB)

    Databases for online analytical processing (also called end-user computing) are discussed. The differences between end-user computing, which uses the multidimensional data model, and transaction processing, which uses the relational model, are examined. The differences between the two models are described. The data manipulation language and analytic functions used by end-user computer are also exa... View full abstract»

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  • DOs and DON'Ts for young EEs

    Publication Year: 1993, Page(s):59 - 61
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (455 KB)

    A long-time engineer presents a road map for moving ahead in the electrical engineering profession. He provides a list of do's and don'ts for promoting career growth and functioning well on the job.<> View full abstract»

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