---
title: "To Buy or Not to Buy? — CIOUTIL by Cosmonics"
type: "article"
slug: "to-buy-or-not-to-buy-cioutil-by-cosmonics"
url: "http://localhost/article/to-buy-or-not-to-buy-cioutil-by-cosmonics/"
markdown_url: "http://localhost/article/to-buy-or-not-to-buy-cioutil-by-cosmonics.md"
published_at: "2026-03-12T23:37:54+00:00"
modified_at: "2026-03-12T23:37:54+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "A review of CIOUTIL, a $17 cassette I/O utility (~500 bytes) from Cosmonics that loads above RAMTOP to provide enhanced tape data handling."
category:
  - name: "Sinclair Users Network"
    slug: "sinclair-users-network"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/sinclair-users-network/"
post_tag:
  - name: "Cosmonics"
    slug: "cosmonics"
    taxonomy: "post_tag"
    url: "http://localhost/tag/cosmonics/"
  - name: "Software review"
    slug: "software-review"
    taxonomy: "post_tag"
    url: "http://localhost/tag/software-review/"
  - 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: "7"
pubdate: "January 1983"
archive_link: false
---

A review of [CIOUTIL](http://localhost/product/cioutil/), a $17 cassette I/O utility (~500 bytes) from [Cosmonics](http://localhost/company/cosmonics/) that loads above RAMTOP to provide enhanced tape data handling.