know here all things of Smartphone was invented by which scientist | IBM discovered what ?
question : Electricity was invented or discovered by whom ?
answer : The famous scientist named IBM was the inventor of Smartphone in the year of 1992.
question : IBM invented which thing and when ?
answer : In ‘1992’ year the well known scientist whose name is ‘ IBM ‘ was the inventor of Smartphone.
question : when and by whom Smartphone was discovered ?
answer : Smartphone was the discovery of IBM which was discovered in 1992 year.
so in short we can say –
invention : Smartphone
inventor : IBM
year : 1992
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