NEW YORK (AP) — Microsoft Chairman Bill Gates, Facebook CEO Mark Zuckerberg and Twitter creator Jack Dorsey are among the tech luminaries appearing in a new video promoting the teaching and learning of computer coding in schools.

Titled “What most schools don’t teach,” the video released online Tuesday begins with Zuckerberg, Gates and other tech icons recalling the time they got their start in coding. For some, that was in sixth grade. For others, such as Ruchi Sanghvi, Facebook’s first female engineer, that happened in college. Freshman year, first semester, intro to computer science, to be exact.