WHO AM I? Over time I have been changed quite a lot.I began as a calculating machine in France in 1642.Although I was young I could simplify difficult sums( 算术题 ) . I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage 1 .After I was programmed by an operator( 操作员 ) who used cards with holes , I could “ think ” logically( 合逻辑地 ) and produce an answer quicker than any person.At that time it was considered a technological revolution and the start of my “artificial intelligence” . In 1936 my real father , Alan Turing , wrote a book about how I could be made to work as a “ universal machine ” to solve any difficult mathematical problem 2 .From then on , I grew rapidly both in size and in brainpower.By the 1940s I had grown as large as a room , and I wondered if I would grow any larger.However , this reality also worried my designers. As time went by 3 , I was made smaller.First as a PC (personal computer) and then as a laptop , I have been used in offices and homes since the 1970s. These changes only became possible as my memory improved.First it was stored in tubes , then on transistors( 晶体管 ) and later on very small chips( 芯片 ) . As a result I totally changed my shape.As I have grown older I have also grown smaller. Over time my memory has developed so much that , like an elephant , I never forget anything I have been told ! 4 And my memory became so large that even I couldn't believe it! But I was always so lonely standing there by myself , until in the early 1960s they gave me a family connected by a network ( 网络 ) 5 .I was able to share my knowledge with others through the World Wide Web( 网 ) . Since the 1970s many new applications( 用途 ) have been found for me.I have become very important in communication , finance and trade.I have also been put into robots and used to make mobile phones as well as 6 help with medical operations.I have even been put into space rockets and sent to explore the Moon and Mars.Anyhow , my goal( 目标 ) is to provide humans with a life of high quality 7 .I am now truly filled with happiness that I am a devoted friend 8 and helper of the human race !