Texbook history By Bruillard Period: 1900 to 2019 Teaching machines Period: 1950 to 2019 Textbooks 1958 Scrambled books Norman Crowder, The arithmetic of computers, Period: 1960 to 2019 Computer (digital) books 1965 Gutenberg project sdfg qdfg sdfg sgh sgh sfh 1972 Dynabook
