DataGlyphs/Microglyphs are a robust and unobtrusive method of embedding computer-readable data on surfaces using tiny 45-degree diagonal lines representing binary 0 or 1. The article details how data is encoded, data density compared to PDF417 barcodes, factors affecting density (resolution, error correction, data compression, overhead), and licensing information.
The author explores the potential of representing Lisp programs as hypertexts using NoteCards, a hypermedia environment from Medley Interlisp, by creating a Sysrama function named CODECARDS to generate hypertext representations.
