Explain the relative advantages and disadvantages of an embedded OS based on an existing commercial OS compared to a purpose-built embedded OS.
Answer to relevant QuestionsWhat are the design goals for TinyOS? The discussion of eCos spinlocks included an example showing why spinlocks should not be used on a uni-processor system if two threads of different priorities can compete for the same spinlock. Explain why the problem still ...In general terms, what are four means of authenticating a user’s identity? For the DAC model discussed in Section 15.3, an alternative representation of the protection state is a directed graph. Each subject and each object in the protection state is represented by a node (a single node is used for ...What are the advantages and disadvantages of using a file integrity checking tool (e.g., tripwire). This is a program which notifies the administrator of any changes to files on a regular basis? Consider issues such as which ...
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