Explain why IN/OUT (port-based) accesses provide lower I/O performance than MMIO. Select all correct answers.   Note - select only answers that cause IN/OUT accesses to be slower than MMIO. You may assume that the instruction does not result in crossing a page boundary.   a.Overhead incurred due to bus locking   b.Overhead incurred due to the need to do page table walks   c.Overhead due to instruction emulation   d.Overhead due to page faults (#PF)   e.Overhead due to 8 byte limit on I/Os   f.None of the above

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Embedded Software Development

Using specific programming languages (like C and C++) to write code for a specific hardware device in which it runs is called embedded software development. It makes the device smart by performing actions based on user's input which improves the user experience. They are designed to perform function-specific tasks rather than doing multiple tasks like computers. The embedded system is incredibly intuitive. An embedded software system could be a system developed and organized on any device, apart from an old-fashioned computer. It is the brain of a specific device; however, it is a solely useless tool and simple to elucidate what software system is embedded.