An advanced technology to read data; new method by I.B.M. allows more density

Article Abstract:

Researchers at IBM's Adstar storage-device subsidiary develop a new technique for writing to and reading from hard disks that enables 30 times more information to be stored in the same space. While current technology allows a storage density of about 350 million bits per square inch, IBM scientists estimate their new technique will provide densities of 10 billion bits per square inch by the year 2000. At this density, one 3.5-in disk drive could contain the text of 10,000 300-page books, for example. The new technique makes use of an effect French scientists discovered in 1988 called giant magneto-resistance. The IBM team has now discovered a practical way to construct a giant magneto-resistive read/write head by annealing a sandwich composed of alternating layers of very thin magnetic and non-magnetic materials. Resistance in the head increases significantly when it comes near a microscopic magnetic spot on the disk.

Computer storage devices, Computer programming services, Research, Industrial research, Product introduction, Computer storage device industry, Research and Development, Increase, Storage Density, New Technique, Read-write heads, Read/write heads, International Business Machines Corp. ADSTAR

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Washington: interactive multimedia for the 2000's: in three museums, visitors explore the worlds of robots, semiconductors and space

Article Abstract:

The Tech 2000 Exhibition, which is a permanent exposition in Washington, DC, provides hands-on experience in interactive multimedia, an evolving technology that combines the processing power of computers with video capabilities. There are more than 60 exhibitions, and a dozen of them are specifically designed for preschoolers. Specific interactive applications focus on various subjects. Typically, lessons appear on display screens, and students interact by typing commands on keyboards or by touching sensitized areas on their screens. The Tech 2000 Exposition, which was begun in 1990, is supported by manufacturers of multimedia hardware and by publishers of interactive software.

Museums and art galleries, Computer industry, High technology, Design and construction, Museums, Art museums, Washington, D.C., Multimedia technology, Multimedia systems, Computer terminals, Computer science, Interactive computer systems, Interactive media, Interactive Systems

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