Every ZX81 Expansion Card You Ever Wanted, All At Once
Every ZX81 Expansion Card You Ever Wanted, All At Once No comments by: Jenny List September 15, 2026 Title: Copy Short Link: Copy The Sinclair ZX81 was a masterpiece of Sir Clive’s desire to get the most out of the least hardware, being about as minimalist as it was possible to get and still be a home computer in 1981. As such it has a keyboard, a Z80, TC and cassette interfaces, 1K of memory, and that was it. There were any number of add-ons for it, but if you were a 1980s kid the chances are you couldn’t afford them.
- ▪Every ZX81 Expansion Card You Ever Wanted, All At Once No comments by: Jenny List September 15, 2026 Title: Copy Short Link: Copy The Sinclair ZX81 was a masterpiece of Sir Clive’s desire to get the most out of the least hardware, being abo
- ▪As such it has a keyboard, a Z80, TC and cassette interfaces, 1K of memory, and that was it.
- ▪There were any number of add-ons for it, but if you were a 1980s kid the chances are you couldn’t afford them.
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| Original publisher | Hackaday |
| Canonical URL | https://hackaday.com/2026/09/15/every-zx81-expansion-card-you-ever-wanted-all-at-once/ |
| Publication time | Tue, 15 Sep 2026 11:00:04 +0000 |
| Retrieval time | 2026-09-15T11:01:52.963Z |
| Last seen | 2026-09-15T11:01:52.963Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | KfKhyPtRYjWx · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Every ZX81 Expansion Card You Ever Wanted, All At Once No comments by: Jenny List September 15, 2026 Title: Copy Short Link: Copy The Sinclair ZX81 was a masterpiece of Sir Clive’s desire to get the most out of the least hardware, being about as minimalist as it was possible to get and still be a home computer in 1981. As such it has a keyboard, a Z80, TC and cassette interfaces, 1K of memory, and that was it. There were any number of add-ons for it, but if you were a 1980s kid the chances are you couldn’t afford them. So 45 years later here’s [adam.klotblixt] with OpenSpand — every ZX81 expansion you could think of, all in one! For a start there’s a RAM expansion. Not the paltry 16K of old, this is user-configurable and has the whole 64K address space minus the ROM to play with.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Hackaday.
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