---
title: "ZX81 Block Diagram"
type: "article"
slug: "zx81-block-diagram"
url: "http://localhost/article/zx81-block-diagram/"
markdown_url: "http://localhost/article/zx81-block-diagram.md"
published_at: "2026-01-17T11:05:47+00:00"
modified_at: "2026-01-17T11:05:48+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
category:
  - name: "QZX"
    slug: "qzx"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/qzx/"
post_tag:
  - name: "ZX81"
    slug: "zx81"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx81/"
model:
  - name: "Sinclair ZX81"
    slug: "zx81"
    taxonomy: "model"
    url: "http://localhost/model/zx81/"
publication: "QZX"
publication_r:
  id: 21219
  title: "QZX"
  type: "periodical"
  url: "http://localhost/periodical/qzx/"
volume: "11"
issue: "11"
issues_articles:
  - id: 50199
    title: "QZX v11 n11"
    type: "issue"
    url: "http://localhost/issue/qzx-v11-n11/"
pages: "4"
pubdate: "October 1993"
archive_link: false
---

# ZX81 Block Diagram