Suppose a computer using a direct mapped cache has 220 words of main memory and a cache of 32 blocks, where each cache block contains 16 words. a) How many blocks of main memory are there? b)What is the format of a memory address as seen by the cache, that is, what are the sizes of the tag, block, and offset fields? c) To which cache block will the memory reference 0D75716 map?

Anewly established internet company with 40 employees needs your advice. they are looking for a collaboration tool and have narrowed their choices to gotomeeting, webex, and my web conferences. after reading the information presented in this chapter and other sources, prepare a two- page document ( double spaced) that includes two advantages and two disadvantages of each tool. which one is your final recommendation? why did you choose that tool over the other two?