--- title: "Unbreakable-Unstoppable Program" type: "article" slug: "unbreakable-unstoppable-program" url: "http://localhost/article/unbreakable-unstoppable-program/" markdown_url: "http://localhost/article/unbreakable-unstoppable-program.md" published_at: "2026-03-13T23:37:04+00:00" modified_at: "2026-03-13T23:37:05+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "Very short TS2068 BASIC listing using ON ERR GO TO that creates a continuously running program immune to BREAK, key presses, and normal interrupts: line 10 sets ON ERR GO TO 20, line 20 prints INKEY$ and loops. Author (unnamed, from ATSU Newsletter, Central Ohio) reports being unable to stop it by any means tried,…" category: - name: "Timelinez" slug: "timelinez" taxonomy: "category" url: "http://localhost/category/periodicals/timelinez/" post_tag: - name: "BASIC (programming language)" slug: "basic-programming-language" taxonomy: "post_tag" url: "http://localhost/tag/basic-programming-language/" - name: "TS 2068" slug: "ts2068" taxonomy: "post_tag" url: "http://localhost/tag/ts2068/" - name: "Type-in program" slug: "type-in-program" taxonomy: "post_tag" url: "http://localhost/tag/type-in-program/" model: - name: "Timex/Sinclair 2068" slug: "ts-2068" taxonomy: "model" url: "http://localhost/model/ts-2068/" publication_r: id: 21571 title: "Timelinez" type: "periodical" url: "http://localhost/periodical/timelinez/" volume: "2" issue: "9" issues_articles: - id: 38807 title: "Timelinez v2 n9" type: "issue" url: "http://localhost/issue/timelinez-v2-n9/" pages: "5" pubdate: "September 1984" archive_link: false --- # Unbreakable-Unstoppable Program Very short TS2068 BASIC listing using ON ERR GO TO that creates a continuously running program immune to BREAK, key presses, and normal interrupts: line 10 sets ON ERR GO TO 20, line 20 prints INKEY$ and loops. Author (unnamed, from ATSU Newsletter, Central Ohio) reports being unable to stop it by any means tried, and suggests it could form the basis of nearly unbreakable T/S programs.