---
title: "The ZX81 Add-On Book"
id: 71781
type: "book"
slug: "the-zx81-add-on-book"
url: "http://localhost/book/the-zx81-add-on-book/"
markdown_url: "http://localhost/book/the-zx81-add-on-book.md"
published_at: "2026-10-08T22:35:46+00:00"
modified_at: "2026-10-08T22:35:47+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2026/10/BookReaderImages-2.jpg"
excerpt: "Ok, so you've got your ZX81, and you've learnt how to program it, but now you want to do something really useful. This book will give you a review of various hardware available to add on to your Sinclair ZX81, plus some useful programs to help make them work."
category:
  - name: "Books"
    slug: "book"
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    url: "http://localhost/category/book/"
post_tag:
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - 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/"
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
indiv:
  - name: "Martin Wren-Hilton"
    slug: "martin-wren-hilton"
    taxonomy: "indiv"
    url: "http://localhost/indiv/martin-wren-hilton/"
authors: "Martin Wren-Hilton"
publisher: "Shiva Publishing Limited"
pages: "84"
date: "1982"
archiveurl: "https://archive.org/details/shiva-the-zx-81-add-on-book-martin-wren-hilton"
---

# The ZX81 Add-On Book

Ok, so you’ve got your ZX81, and you’ve learnt how to program it, but now you want to do something really useful.

This book will give you a review of various hardware available to add on to your Sinclair ZX81, plus some useful programs to help make them work.