What was the name of the Seattle school where Bill Gates first gained access to a computer?

The Seattle school where Bill Gates first gained access to a computer was Lakeside School.

Gates attended Lakeside School, a private school in Seattle, beginning in the 1960s. The school’s Mothers’ Club used money from a fundraising sale to obtain computer time for students, giving Gates and other pupils an opportunity to work with computers before such access was common in schools.

At Lakeside, Gates met Paul Allen, who was older and shared his interest in computing. Gates spent substantial time learning programming and experimenting with the school’s computer access. Those experiences helped lead to early software projects and eventually to Microsoft.

Lakeside is sometimes confused with Harvard University, where Gates later enrolled. Harvard was his college, not the school where he first encountered computing. The Lakeside connection is central to the origin story of Gates’s technical interests and his partnership with Allen.