How does c++ or c# work with com ports?

I am working on an exercise where I need to send the following bytes 开发者_如何学编程of data "0x80, 0x07, 0x52, 0x1f, 0x1f

How would I go through with this? Thanks

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http://www.dreamincode.net/forums/topic/35775-serial-port-communication-in-c%23/

Communicating with Serial Port in C#