---
title: "From Theirs to Ours"
type: "article"
slug: "from-theirs-to-ours-4"
url: "http://localhost/article/from-theirs-to-ours-4/"
markdown_url: "http://localhost/article/from-theirs-to-ours-4.md"
published_at: "2026-03-12T23:42:18+00:00"
modified_at: "2026-03-12T23:42:18+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "A BASIC command comparison mapping equivalents for CALL/USR, SAVE, LOAD, RAND, CLEAR, DATA/READ, COLOR, and DIM across Apple, PET, TRS-80, and ZX/TS 1000, to help users port programs."
category:
  - name: "Sinclair Users Network"
    slug: "sinclair-users-network"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/sinclair-users-network/"
post_tag:
  - name: "BASIC (programming language)"
    slug: "basic-programming-language"
    taxonomy: "post_tag"
    url: "http://localhost/tag/basic-programming-language/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
publication_r:
  id: 21559
  title: "Sinclair Users Network"
  type: "periodical"
  url: "http://localhost/periodical/sinclair-users-network/"
volume: "2"
issue: "1"
issues_articles:
  - id: 26557
    title: "Sinclair Users Network January 1983"
    type: "issue"
    url: "http://localhost/issue/sinclair-users-network-january-1983/"
pages: "5"
pubdate: "January 1983"
archive_link: false
---

A BASIC command comparison mapping equivalents for CALL/USR, SAVE, LOAD, RAND, CLEAR, DATA/READ, COLOR, and DIM across Apple, PET, TRS-80, and ZX/TS 1000, to help users port programs.