A Spectra Physics Model A supermarket scanner—one of the first ten ever produced. A laser within the unit projects a beam onto a mirror that redirects it through the glass plate on the top. Cade ...

You don't need a physical scanner to quickly sign, scan and send official documents -- just use the iPhone in your pocket. David Lumb is a managing editor for the mobile team, covering mobile and ...

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A programming language is a set of symbols whose strings are governed by rules apt to communicate instructions to a particular machine. Such strings may be concatenated into longer code and implement ...