精选优质文档-倾情为你奉上人教版高一英语必修二Unit 3课文翻译Unit 3Computers Reading WHO AM I?我是谁?Over time I have changed quite a lot. I began as acalculatingmachineinFrancein1642.AlthoughIwasyoungIcouldsimplifydifficultsums.IdevelopedveryslowlyandittooknearlytwohundredyearsbeforeIwasbuiltasananalyticalmachinebyCharlesBaggage. AfterIwasprogrammedbyanoperatorwhousedcardswithholes, Icould“think” logicallyandproduceananswerquickerthananyperson. Atthatt
