1. Determine the decimal value represented by 10111010 in each of the following four systems. i) Unsigned notation ii) Signed magnitude notation iii) Excess notation iv) Two's complements 2. Determine the floating-point representation in the formats of IEEE 754 Single Precision and IEEE 754 Double Precision for +0.9. Convert the value represented back to decimal. Calculate the relative error of the representation. 3. Construct a 32 X 8 RAM using 4 of 16 X 4 RAM chips. 4. State and describe the steps in memory access process of DRAM module. 5. Consider a computer system with a 32-bit logical address and 4 KB page size. The system supports up to 512 MB of physical memory. Find the numbers of entries in the following types of tables. i) A conventional single-level page table ii) An inverted page table