---
title: "QL Hacker’s Journal 13"
id: 61549
type: "issue"
slug: "ql-hackers-journal-13"
url: "http://localhost/issue/ql-hackers-journal-13/"
markdown_url: "http://localhost/issue/ql-hackers-journal-13.md"
published_at: "2025-11-18T13:09:56+00:00"
modified_at: "2025-11-20T00:09:19+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2025/10/Sinclair_QL_Top_cutout-scaled.png"
category:
  - name: "QL Hacker's Journal"
    slug: "ql-hackers-journal"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/ql-hackers-journal/"
periodical_issues:
  - id: 33686
    title: "QL Hacker’s Journal"
    type: "periodical"
    url: "http://localhost/periodical/ql-hackers-journal/"
number: "13"
issue_date: "April 1993"
issues_articles:
  - id: 61635
    title: "Editor’s Forum"
    type: "article"
    url: "http://localhost/article/editors-forum-12/"
  - id: 61636
    title: "Text Editors"
    type: "article"
    url: "http://localhost/article/text-editors/"
  - id: 61637
    title: "QL Languages"
    type: "article"
    url: "http://localhost/article/ql-languages/"
  - id: 61638
    title: "Prolog Interpreter"
    type: "article"
    url: "http://localhost/article/prolog-interpreter/"
  - id: 61639
    title: "eFORTH Interpreter"
    type: "article"
    url: "http://localhost/article/eforth-interpreter/"
  - id: 61640
    title: "Programmer’s Bookshelf Revisited"
    type: "article"
    url: "http://localhost/article/programmers-bookshelf-revisited/"
  - id: 61641
    title: "Recent Ports"
    type: "article"
    url: "http://localhost/article/recent-ports/"
  - id: 61642
    title: "Byte Input in SuperBasic"
    type: "article"
    url: "http://localhost/article/byte-input-in-superbasic/"
  - id: 61643
    title: "FORTH Programming"
    type: "article"
    url: "http://localhost/article/forth-programming/"
archiveurl: "https://archive.org/download/ql-hackers-journal/QL%20Hacker%27s%20Journal%2013.txt"
---

# QL Hacker’s Journal 13