End papers from my newest book The History of the Computer pre-order ink in bio and on sale 4/26 I love making patterns for my books What machines can you spot? . : . . . . #retrogaming #retrocomputer #retrocomputing #retrotech #computerhistory #computerscience #teched #techeducation #scienceteacher #girlswhocode #girlsintech #womenintech #womeninscience #instabooks #bookstagram #rachelignotofsky #patterndesign #spacerace https://www.instagram.com/p/CY7IMw-PW9p/?utm_medium=tumblr