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A vacuum tube is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.
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It was a binary electrically driven mechanical calculator with limited programmability, reading instructions from punched celluloid film.
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It was primarily used to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory.
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It is a semiconductor device used to amplify or switch electronic signals and electrical power
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It would have had vastly more memory than any of the other early computers, as well as being faster
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Artificial intelligence machines (or computers) that mimic "cognitive" functions that humans associate with the human mind, such as "learning" and "problem-solving".
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It is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material that is normally silicon.
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It is a hand-held pointing device that detects two-dimensional motion relative to a surface.
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It is an electronic component that is used by a computer to do its work.
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It is an information system where documents and other web resources are identified by Uniform Resource Locators (URLs, which may be interlinked by hypertext, and are accessible over the Internet.
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It is a line of touchscreen-based smartphones designed and marketed by Apple Inc
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I think that the iPhone was the most important invention because we use it for most of our communication around the world and it has a lot of apps that we use instead of having to carry a map, or have a GPS, a camera, or a calculator around.
