An excimer laser is a type of laser used in eye surgeries.

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Back in the mid-1980s, I spent every spare dollar on the latest Macs, the best laser printers, Adobe type fonts and page layout software.

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Instead, physicians and diagnosticians have to print out the digital images on X-ray-type film or laser paper.

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"In the near future, this type of simple laser communication might serve as a backup for the radio communication that satellites use, " Smith said in a statement.

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Sadly for Xerox, other more nimble companies brought these great ideas to market--the Apple Macintosh, Adobe type fonts, Canon laser printers and 3Com-style local area networks, all of which would appear in the 1980s.

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In a series of animal experiments published over the past year, university-based neuroscientists genetically engineered mice and monkeys with different types of neurons primed to be uniquely responsive to shades of laser light, so that a single type of activity or behavior could be altered instantly without affecting anything else.

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The sensor, or an array of them, would record the movement of your hands while they type against a keyboard projected by laser on your desk, or even in the space in front of you.

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The Light Touch can turn that image into a touch-screen that you can type on or swipe through with the help of a holographic laser projection and infrared sensor at the bottom of the device.

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