---
title: "Tricks of the Trade"
type: "article"
slug: "tricks-of-the-trade-2"
url: "http://localhost/article/tricks-of-the-trade-2/"
markdown_url: "http://localhost/article/tricks-of-the-trade-2.md"
published_at: "2021-02-07T16:33:26+00:00"
modified_at: "2024-06-23T07:44:05+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Methods of preserving copyright on programs. Most involve POKEs to hide the first line."
category:
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    taxonomy: "category"
    url: "http://localhost/category/periodicals/sinc-link/"
post_tag:
  - name: "1983"
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    taxonomy: "post_tag"
    url: "http://localhost/tag/year-1983/"
  - name: "TS 1000"
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  - name: "Tutorial"
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    url: "http://localhost/tag/tutorial/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
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indiv:
  - name: "Juan Jose Castillos"
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    url: "http://localhost/indiv/juan-jose-castillos/"
publication: "Sinc-Link"
publication_r:
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  title: "Sinc-Link"
  type: "periodical"
  url: "http://localhost/periodical/sinc-link/"
authors: "Juan Jose Castillos"
volume: "1"
issue: "3"
issues_articles:
  - id: 26573
    title: "Sinc-Link v1 n3"
    type: "issue"
    url: "http://localhost/issue/sinc-link-v1-n3/"
pages: "8-9"
pubdate: "May/June 1983"
archive_link: false
volumeissue: "v1n3"
---

# Tricks of the Trade

Methods of preserving copyright on programs. Most involve POKEs to hide the first line.