1) The Memory Management Unit (MMU) restricts the memory access of an applicatio
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Question
1) The Memory Management Unit (MMU) restricts the memory access of an application between the base and base + bound addresses. Another policy is to allow the application to access all parts of the memory except for the resident monitor memory.
a ) Explain why in general purpose computing systems the second approach is not applicable.
The basic answer to this is by not allocating a specific range for MMU provides then you open up the chance to have other potential programs to be overwritten and therefore less stable.
b) Give an example application where the second approach is used.
Explanation / Answer
The memory management unit MMU in short is sometimes called the paged memory management unit and is type of memory unit which having all the memory references to be passed form itsel means it automatically detects and parses the memory location as it translates the virtual memory address to the actual physical address and this technology is used in the modern computers as the modern computer needs to be fast so this came as this unit is faster that the resident memory unit as there we need to manage the memory address manullt which makes it slow as accessing directly any address is difficult is hard and may be the accessed memory is in use by some other code so the hit ahd try method for memory alloacation will result in alot of time consming task and thats the reason that in general purpose it is not used.
The resident monitor memory is used for boot files, dics and the files used for the startup means the basically a fix storage which cannot be easily changed is resident monitor memory and used by the ROM , cache memory etc in general computing.
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