Image: https://cdn.xn--cumpleaosdefamosos-t0b.com/gallery/2017/1/john-backus/john-backus-programador-de-computadoras.jpg
John Backus
professions.cientifico de Estados Unidos
Image: https://cdn.xn--cumpleaosdefamosos-t0b.com/gallery/2017/1/john-backus/john-backus-programador-de-computadoras.jpg
professions.cientifico de Estados Unidos