I figured the concept for the display devices was based on microfilm/microfiche readers rather than CRTs. Microfilm was "high-tech" back then, and Vannevar Bush

I figured the concept for the display devices was based on microfilm/microfiche readers rather than CRTs. Microfilm was "high-tech" back then, and Vannevar Bush's Memex (of a couple decades earlier) was microfilm-based.