Estimate how much space would be needed to store digitally one copy of all the music ever recorded. State and justify any assumptions you make, and show how you worked out your answer. (Hint: you could start by finding information about the size of online music databases). Compare the result you got with the amount of storage available nowadays on a smartphone or tablet, and discuss whether sometime in the future (given likely improvements in technology) people will be able to store all the music ever recorded on the personal computing devices that will be available then.