Treat them as students in need of an education. Ignore all else. They are students. They need education. Everything else - income, place of birth, place of residence, race, sexual orientation, anything else - is completely and utterly irrelevant.
Of all the reasons for the black-white achievement gap, access to computers is pretty much the least of the problems. Interesting ideas, but bad title.
Parenting, tracking, and peer groups probably top the list.
Check out a copy of Hart & Risley's book Meaningful Differences in the Everyday Experience of Young American Children to understand the effect of parenting.
To understand the tracking and peer group, just pick up a book that summarizes all the most important research on education. Two good ones are Equality and Achievement by Riordan, and Visible Learning by John Hattie.
Treat them as students in need of an education. Ignore all else. They are students. They need education. Everything else - income, place of birth, place of residence, race, sexual orientation, anything else - is completely and utterly irrelevant.