As the project began, Moggridge didn’t know if such a thing was even possible—if a computer really could be portable enough to be desirable. To test whether it was, he gathered up all the raw parts required in a computer—a hard drive, a floppy drive, a processor, and a display—and put them in a briefcase, which he would carry around all day. It was heavy, but workable. The problem wasn’t just making it lighter but making it small, when the display consumed so much space. Perhaps inspired by the briefcase itself, Moggridge hit upon the now-universal clamshell design, where the display could be
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