Apple says it more than doubled the numbers of women, blacks and Hispanics hired in the last year, although that barely moved the needle in terms of improving the diversity of its total workforce.

Thousands of female engineers, coders and other tech superstars joined a Twitter campaign this week to break down stereotypes about what engineers should look like.

Intel is launching a $125 million investment fund that will back technology startups led by women and minorities, in a move it says is aimed at helping to change the face of Silicon Valley.