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The number may be printed on a label or may be engraved into the hardware itself. Many electronics save the serial number permanently in the device ROM. Alternately, click Start, type system in the search field, and then select when it appears in the program listing. ReadLine ; SerPort. Improve this question. Venkat Raju Venkat Raju 1 1 1 bronze badge. Add a comment. Active Oldest Votes. F3: Console. WriteLine "F3 hit F5: Console. WriteLine "F5 hit Open ; serialPort.
WriteLine keyInfo ; serialPort.
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