1. In a system using the relocatable dynamic partitions scheme, given the following situation (and using decimal form): Job Q is loaded into memory starting at memory location 42K.a. Calculate the exact starting address for Job Q in bytes.b. If the memory block has 3K in fragmentation, calculate the size of the memory block.c. Is the resulting fragmentation internal or external? Explain your reasoning.2. Given the following information:Job List: Memory Block List:Job Number Memory Requested Memory Block Memory Block SizeJob A      690K      Block 1  900K (low-order memory)Job B      275K      Block 2  910KJob C      760K      Block 3  300K (high-order memory)a. Use the first-fit algorithm to indicate which memory blocks are allocated to each of the three arriving jobs.b. Use the best-fit algorithm to indicate which memory blocks are allocated to each of the three arriving jobs.3. In computing literature, the value represented by the prefixes kilo-, mega-, giga-, and so on can vary depending on whether they are describing many bytes of main memory or many bits of data transmission speed. Calculate the number of bytes in a megabyte (MB) and compare it to the number of bits in a megabit (Mb). If there is a difference, explain why that is the case. Cite your sources.4. Select two of the following professionals: an insurance adjuster, a delivery person for a courier service, a newspaper reporter, a general practitioner doctor, or a manager in a supermarket. Suggest at least two ways that each person might use a mobile computer to work efficiently.

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