What made computers indispensable?
* The first database programs, plus word processing and accounting software.
What first made the Internet a necessity instead of a curiosity?
* Email, singlehandedly.
Why did cell phones become nearly ubiquitous so quickly, despite concerns about their health impacts?
* Mobile connectivity, plus the magic of texting, made cellphones an essential tool for postmodern lifestyles.
Why do we salivate over the iPhone, and now the iPad?
* Because the sleek tool lets us use thousands of amazingly cool, intuitive apps.
We undertake the ordeal of upgrading our operating systems only in order to access new applications. A “killer app” legitimizes any innovative approach, making the expense and hassle of an upgrade worthwhile.
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