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What is the Internet?
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1. What is the most popular search engine? 2. When was Google founded?
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1. How does a DVD differ from a CD? 2. What is virtual reality?
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1. How are the compact disc (CDS) made? 2. What is the life span of CD-R and CD-RW discs?
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1. When did cell phones begin using digital technology in America? 2. How does a smartphone differ from a cell phone?
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1. When were the first cell phone call made using a portable, hand-held phone 2. Who were the first subscribers to mobile telephone service?
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When were the first mobile telephones developed?
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How does a fiber-optic cable work?
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