TigerKing
Wise Old Owl
Ok..Ok,I am not familiar with Arduino board.I assumed that "computer" in this case is different from Arduino & was used as a source to upload some kind of program to the board after which computer hdd was formatted.
Computer means PC
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You can connect Arduino Nano to PC, create program/sketch through Arduino IDE, compile it, upload it to Arduino Nano through USB connection, after uploading no need for computer to run the program.
Okay.