The main memory of a computer is organized as 256 blocks, with a block size of 8 words. The cache has 16 block frames. For the questions below, show the mappings from the numbered blocks of main memory to block frames of the cache. Draw all lines showing the mappings as clearly as possible. a) Show the direct mapping and the address bits that identify the tag field, the index field, and the word offset field (the bits identifying a word within a block). b) Show the fully associative mapping and the address bits that identify the tag field and the word offset field. c) Show the mapping for the 2-way set associative mapping and the address bits that identify the tag field, the set number, and the word number.

Develop the program incrementally: a) start by reading and displaying each line of the input file to make sure you are reading the data set correctly. b) use the split string method to extract information from each line into a list. print the list to prove that this step is working correctly. d) convert the exam scores to type int and calculate the student’s average. display those items to prove this step is working correctly. e) create a tuple containing the six items for each student (name, exam scores, exam mean). display the tuples to prove this step is working correctly. (optionally, you may want to have the exam scores in a list so your tuple is (name, scores_list, f) append each tuple to a list. display the list to prove this step is working correctly. g) use the sort list method to re-order the tuples in the list. display the list to prove this step is working correctly. h) use a for statement to display the contents of the list as a table (with appropriate formatting). i) use a for statement to calculate the average of all scores on exam #1, then display the results. note that you could have calculated this average within the first loop, but we are explicitly requiring you to do this calculation by looping though your list of tuples. j) add the logic to calculate the average of all scores on exam #2, then display the results.