No, my mother was a teacher and my father a manager at the local hospital. So while we weren't rich, we were definitely not poverty stricken either.

I cannot speak much to the experience of poor white people in the tech community, but, at least anecdotally, I know of two other people I went to high school with who also went into tech. One is still in the industry as far as I know and the other left it a few years ago. (For reference, I am in my early 30s)

I was.

Edit: and I can totally affirm that being a white man from a poor family absolutely afforded me more privilege than being a woman or a minority. I can pass as middle class by losing my accent and picking up a nice suit on the cheap.