---
title: "The Sinclair Information Network (S.I.N.)"
type: "article"
slug: "the-sinclair-information-network-s-i-n"
url: "http://localhost/article/the-sinclair-information-network-s-i-n/"
markdown_url: "http://localhost/article/the-sinclair-information-network-s-i-n.md"
published_at: "2025-11-05T15:52:19+00:00"
modified_at: "2025-11-05T18:40:52+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "The Sinclair Information Network is designed to be a marketplace for ideas and information concerning all of the Sinclair and Timex/Sinclair computers. Formed by Mark L. Fendrick, owner of (and author for) Markel Software, the SIN was born out of frustration felt when Timex exited the computer field, and the major Sinclair related publications followed.…"
category:
  - name: "T-S Horizons"
    slug: "t-s-horizons"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/t-s-horizons/"
post_tag:
  - name: "Telecomputing"
    slug: "telecomputing"
    taxonomy: "post_tag"
    url: "http://localhost/tag/telecomputing/"
indiv:
  - name: "Mark Fendrick"
    slug: "mark-fendrick"
    taxonomy: "indiv"
    url: "http://localhost/indiv/mark-fendrick/"
publication_r:
  id: 10247
  title: "T-S Horizons"
  type: "periodical"
  url: "http://localhost/periodical/t-s-horizons/"
authors_r:
  - name: "Mark Fendrick"
    slug: "mark-fendrick"
    taxonomy: "indiv"
    url: "http://localhost/indiv/mark-fendrick/"
issue: "7"
issues_articles:
  - id: 50944
    title: "T-S Horizons n7"
    type: "issue"
    url: "http://localhost/issue/t-s-horizons-n7/"
pages: "21"
pubdate: "July/August 1984"
archive_link: false
---

# The Sinclair Information Network (S.I.N.)

The Sinclair Information Network is designed to be a marketplace for ideas and information concerning all of the Sinclair and Timex/Sinclair computers.

Formed by [Mark L. Fendrick](http://localhost/indiv/mark-fendrick/), owner of (and author for) [Markel Software](http://localhost/company/markel-software/), the SIN was born out of frustration felt when Timex exited the computer field, and the major Sinclair related publications followed. The SIN is a free forum and may be “accessed” in many ways.