answer it from 13 to 21 please

13. Protected mode memory addressing allows access to which area of the memory in the 80286 microprocessor and to which area of the memory in the Pentium II microprocessor? 14. What is the purpose of the segment register in protected mode memory addressing? 15. How many descriptors are accessible in the global descriptor table in the protected mode? 16. For an 80286 descriptor that contains a base address of A00000H and a limit of 1000H, what starting and ending locations are addressed by this descriptor? 17. For an 80486 descriptor that contains a base address of 01000000H, a limit of OFFFFH, and G = 0, what starting and ending locations are addressed by this descriptor? 18. For a Pentium 4 descriptor that contains a base address of 00280000H, a limit of 00010H, and G = 1, what starting and ending locations are addressed by this descriptor? 19. If the DS register contains 0020H in a protected mode system, which global descriptor table entry is accessed? 20. Code a descriptor that describes a memory segment that begins at location 210000H and ends at location 21001 FH. This memory segment is a code segment that can be read. The descriptor is for an 80286 microprocessor. 21. Code a descriptor that describes a memory segment that begins at location 03000000H and ends at location OSFFFFFFH. This memory segment is a data segment that grows upward in the memory system and can be written. The descriptor is for an 80386 microprocessor