Many computers use one byte (8 bits) of data for each letter of the alphabet. There are 44 millions words in the Encyclopedia Brittanica.(a) What is the bit density (bit/in^2) of the head of a pin if the entire encyclopedia is printed on it? Assume the average word is five letters long.(b) What is the byte density? (c) What is the area of a single bit in nm^2?(d) A CD-ROM has a storage density of 46 megabytes/in^2 and a DVD has a storage density of 329 megabytes/in^2. Is the pinhead better or worse than these two storage media? How much better or worse?

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