Stupid Question

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ok, stupid question sure :) , checked troubleshooting guide , solution, silly might be, doesn't appear there so... here go :)
i'm working on project i'll have present in couple days: point don't know if arduino can powered via usb pc port if computer belongs doesn't have proper arduino drivers installed. i'd know because i'll have short time presentation , computer i'll using not mine (and doesn't have arduino drivers on whatsoever), need know if i'll have put additional section in circuit power arduino.
pretty stupid question, told you... :)

questions never stupid, may incomplete or ...
answers can stupid ;)

quote
the point don't know if arduino can powered via usb pc port if computer belongs doesn't have proper arduino drivers installed.

you need 5 seconds confirm computer.
don't have 2nd computer in house?

q: need serial port presentation?


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