Topics from April 2017
- What is Paging Service?
Posted by Keshav Jain on
- What is Electronic Mail?
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- What is Internet?
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- What is FM transmission?
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- What is Multimedia?
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- What is a Compact Disc?
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- What is the principle of an autopilot?
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- What is bar code?
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- What is the remote control of a television set?
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- What is automatic door operation?
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- What is a cellular phone?
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- What is star Television?
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