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2 . [ 1 0 points ] There is an old CPU running a program in which memory operations currently take ( 3 0

2.[10 points] There is an old CPU running a program in which memory operations currently take \(30\%\) of its execution time. Scientists find that adding a cache memory speeds up \(80\%\) of memory operations by a factor of 6. Adding a second level of cache speeds up half of the remaining \(20\%\) by a factor of 3. By how much does the overall speed increase using these optimizations? 3.[10 points] Frank is designing the memory system for a new processor to be launched next year. If the current version of his processor expends 35\% of its time processing memory references, by how much must Frank increase the speed of the memory system to get a total speedup of 1.7? What about a speedup of 1.9?1.[10 points] Convert the following floating point numbers to binary. You must use upto 3 binary digits after the decimal point. Also write down their representations in IEEE single precision floating point. A.14.79 B.6.783 C.3.211

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