Kopec Explains Software #76 What is Protected Memory?
Memory protection is a mechanism for protecting one program from another program, which ultimately protects the user. It stops malicious programs from interfering with legitimate programs, and it stops programmer errors in one program from taking down another. Every time you've been able to force quit a non-responsive application and then go on using your system with the rest of it unaffected you've been benefitting from protected memory. But personal computing operating systems didn't always have memory protection. In this episdoe we'll explain what protected memory is, its history in personal computers, and why you don't need to restart after you force quit an app.
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