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計概mass storage問題
Suppose a typist could type 60 words per min continuously day after day. How long would it take the typist to fill a CD whose capacity is 640 MB? Assume one word is five characters and each character requires one byte of storage.
煩請各位大大幫忙解答,感謝
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- aacheongLv 51 decade agoFavorite Answer
先把題目翻為中文:
假設一個 word 有五個 characters ,而每個 character 佔用一個 byte ,
如果每分鐘敲 60 個 words ,則多少時間可填滿一片容量為 640 MB 的 CD ?
這題應該是在考 MB ,
1 MB 為 1024 KB ,
1 KB 為 1024 Bytes ,
所以 640 MB 表示 640 *1024*1024 Bytes 。
每分鐘敲 60 個 words ,每個 word 有五個 characters ,
表示每分鐘敲 300 個 characters ,
表示一分鐘可填滿 300 個 bytes 。
所以
填滿一片 640 MB 的 CD 需要 (640 *1024*1024 / 300) 分鐘,
也就是 2236962.13 分鐘。
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