A Trick and a Graphic System AuthorsKeith ComerPublicationSYNCPub DetailsSYNC v1 n3Volume: 1 Issue: 3DateMay/June 1981Pages30-31Read the articleSee all articles from SYNC v1 n3 Related ArticlesGlitchoidz ReportGlitchoidz Report TagsSYNC 1981 Type-in program ZX80 PeopleKeith Comer