Fixed-partitiontechniqueThe memorymanagement techniquein which memory isdivided into a specificnumber of partitions intowhich programs areloadedDynamic-partition tech-niqueThe memorymanagement techniquein which memory isdivided into partitions asneeded to accommodateprograms10.2Memory Management329ming environment, we must prevent a program from accessing anyaddresses beyond its allocated memory space. With the operating systemloaded at location0, all logical addresses for the program are valid unlessthey exceed the bounds of main memory itself. If we move the operatingsystem below the program, we’d have to make sure a logical addressdidn’t try to access the memory space devoted to the operating system.This wouldn’t be difficult, but it would be add to the complexity of theprocessing.The advantage of a single contiguous memory management approach isthat it is simple to implement and manage. However, memory space andCPU time are almost certainly wasted. It is unlikely that an application
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Virtual memory, main memory, Computer program, dynamic partitions