18.2 Software
We have all encountered horror stories about software that contained errors; they make for very interesting reading. Are software errors in running programs really common occurrences? Can’t we do something to make software more error free? To answer the first question, a web search for “software bugs” retrieved 261,000,000 hits. To answer the second, software developers are trying. In the next few sections, we examine why error-free software is difficult—if not impossible—to produce. We also discuss current approaches to software quality, and we end with a collection of interesting bugs.
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