What are the external hardware devices? Eplain how to connect them and what it use for.

Write a javascript program that reads three integers named start, end, and divisor from three text fields. your program must output to a div all the integers between start and end, inclusive, that are evenly divisible by divisor. the output integers must be separated by spaces. for example, if a user entered 17, 30, and 5, your program would output "20 25 30" (without the quotes) because those are the only integers between 17 and 30 (including 17 and 30) that are evenly divisible by 5.

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Suppose you are an ad-serving company and you maintain a log of cookie data for ads you serve to the web pages for a particular vendor (say amazon). a. how can you use this data to determine which are the best ads? b. how can you use this data to determine which are the best ad formats? c. how could you records of past ads and ad clicks to determine which ads to send to a given ip address? d. how could you use this data to determine how well the technique you used in your answer to part c was working? e. how could you use this data to determine that a given ip address is used by more than one person? f. how does having this data give you a competitive advantage vis-à-vis other ad-serving companies?