Up to two million children live in households which do not have access to broadband or dial-up internet, a new report has found.
Education charity the e-Learning Foundation reported that a further one million live in homes without a computer, let alone broadband.
The finding - which raises concerns about the digital participation of some families - was taken from the latest Government Family Spending Survey.
Valerie Thompson, Chief Executive Officer of the e-Learning Foundation, said that with so many children swamped with gifts from family and friends over the Christmas period, it is important to reflect on the fact that millions of children live in poverty in this country.
"For those at school, this translates into very tangible disadvantages when it comes to completing homework, researching topics, independent learning and communicating with teachers and classmates on the school learning platform," she stated.
"Without the use of a computer and the ability to go online at home, the attainment gap that characterises children from low-income families is simply going to get worse."
The Department for Education has so far declined to comment on the findings.