---
title: "Dear Editor: Character Generator Add-On and Thoughts on Technology Churn"
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slug: "dear-editor-character-generator-add-on-and-thoughts-on-technology-churn"
url: "http://localhost/article/dear-editor-character-generator-add-on-and-thoughts-on-technology-churn/"
markdown_url: "http://localhost/article/dear-editor-character-generator-add-on-and-thoughts-on-technology-churn.md"
published_at: "2026-03-13T12:38:29+00:00"
modified_at: "2026-03-13T12:38:29+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Letter from Dick Wagner: describes demonstrating an EPROM-based character generator add-on (Spyder Electronics) for his ZX81, prompting questions about high-resolution PLOTting. He wrote to the manufacturer and discovered they had gone out of business. Reflects on technology churn: new products spawn new businesses while dropping others into obsolescence. Editorial response discusses the value of affordable…"
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---

# Dear Editor: Character Generator Add-On and Thoughts on Technology Churn

Letter from Dick Wagner: describes demonstrating an EPROM-based character generator add-on (Spyder Electronics) for his ZX81, prompting questions about high-resolution PLOTting. He wrote to the manufacturer and discovered they had gone out of business. Reflects on technology churn: new products spawn new businesses while dropping others into obsolescence. Editorial response discusses the value of affordable low-cost computing.