---
title: "Managing with the ZX81"
type: "article"
slug: "managing-with-the-zx81"
url: "http://localhost/article/managing-with-the-zx81/"
markdown_url: "http://localhost/article/managing-with-the-zx81.md"
published_at: "2020-10-27T17:19:02+00:00"
modified_at: "2024-06-23T07:49:07+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "The program below, written for a ZX81 with 16K RAM, is designed to answer management questions. It is, in fact, a suite of five programs linked together, with an initial menu to enable the user to choose from among them. It is based on a series of rapid statistical tests devised by Eric Duckworth, a…"
category:
  - name: "SYNC"
    slug: "sync"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/sync/"
post_tag:
  - name: "1983"
    slug: "year-1983"
    taxonomy: "post_tag"
    url: "http://localhost/tag/year-1983/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - name: "Type-in program"
    slug: "type-in-program"
    taxonomy: "post_tag"
    url: "http://localhost/tag/type-in-program/"
  - 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: "C. E. Coffin"
    slug: "c-e-coffin"
    taxonomy: "indiv"
    url: "http://localhost/indiv/c-e-coffin/"
publication: "Sync"
publication_r:
  id: 10243
  title: "SYNC"
  type: "periodical"
  url: "http://localhost/periodical/sync-magazine/"
authors: "C. E. Coffin"
volume: "3"
issue: "2"
issues_articles:
  - id: 26648
    title: "SYNC v3 n2"
    type: "issue"
    url: "http://localhost/issue/sync-v3-n2/"
pages: "18, 20"
pubdate: "March/April 1983"
archive_link: false
volumeissue: "v3n2"
---

# Managing with the ZX81

The program below, written for a ZX81 with 16K RAM, is designed to answer management questions. It is, in fact, a suite of five programs linked together, with an initial menu to enable the user to choose from among them. It is based on a series of rapid statistical tests devised by Eric Duckworth, a noted writer on operational research.