State the required answer precisely and then provide properexplanation. It is not enough to provide one- word or one-lineanswers.

Some early computers protected the operating system by placingit in a memory partition that could not be modified by either auser job or the operating system itself (for example, by placing itin read-only memory). Describe difficulties that you think couldarise with such a scheme. Remember that an operating system mustmaintain a large number of data structures relating to processes,files, etc.  

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Asked Jan. 25, 2017