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Chapter 8. Memory Management: 1. A system uses a fixed-partition scheme, with equal-sized partitions of 216 bytes, and a total main memory size of 224 bytes. A process table is maintained that includes a pointer to the resident partition for each resident process. How many bits are required for this pointer? 2. A system uses a dynamic partitioning scheme, and the current memory couaton is as shown below. The shaded areas are allocated blocks. The un-shaded areas are free blocks. The next three memory requests are for 40MB, 20MB, and 60MB. Indicate the starting address for each of the three blocks using the specified placement algorithm: a) first-fit b) best fit c) worst fit