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Computer began as a calculating machine in France in 1642 Computer developed very _1.(slow) and it took nearly two hundred years _2._ it was built as an analytical machine, _3._followed instructions from cards with holes. In 1936 Alan Turing wrote a book _4.__(describe) how computers could be made to work as a "universal machine" _5.__(solve) any mathematical problem.

By the 1940s computer _6._(grow) as large as a room . As time went__7. it has grown smaller, and with artificial_8._(intelligent), it is getting cleverer and cleverer, quicker and_9._(quick). In the early 1960s, computers could be connected by a network. So people were able to share their information _10._others through the World Wide WeB.

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How often one hears children wishing they were grown up, and the old wishing they were young again! Each age has its pleasure and its pains, and the happiest person is the one who enjoys what each age gives him without wasting any time in useless regrets.
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D.

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