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The HX-20 (also known as the HC-20) was an early laptop computer released by Seiko Epson in July 1982. It was the first notebook-sized portable computer, occupying roughly the footprint of an A4 notebook while being lightweight enough to hold comfortably with one hand at 1.6 kilograms (3.5 lb) and small enough to fit inside an average briefcase.
The analysis highlights History, Applications, Literary Connections and Products as prominent areas in the source structure around Epson HX-20.
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
The extracted context around Epson HX-20 shows recurring relationship patterns in the source. For example, Epson HX-20 → COMDEX, Epson, HC-20, HX-20, It, Japan, Japanese Seiko Group, July, Las Vegas, North America, Seiko Epson, Suwa Seikosha, The, Yukio Yokozawa Another extracted example is Epson HX-20 → Ahl, CREATIVE COMPUTING VOL, David, HC-20, HX-20, HX-20 Archived, HX-20https, HXTape, MARCH, NO, PAGE, The World's First Laptop, Wayback Machine1983 Epson HX-20. Use these groups to spot repeated connection types before inspecting the individual relationships.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
hx-20 epson computer also basic first rom program lcd monitor hc-20 notebook used two known july released memory roms 1983
TTTA extracted 53 structured relationships around Epson HX-20. Examples in this analysis include Epson HX-20 → Also known as → HC-20 and Epson HX-20 → CPU → Two Hitachi 6301 CPUs at 614 kHz. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Epson HX-20 | Also known as | HC-20 | 1.00 | infobox |
| Epson HX-20 | CPU | Two Hitachi 6301 CPUs at 614 kHz | 1.00 | infobox |
| Epson HX-20 | Dimensions | A4 Sized | 1.00 | infobox |
| Epson HX-20 | Display | 4 lines x 20 characters LCD | 1.00 | infobox |
| Epson HX-20 | Graphics | 120 × 32-pixel | 1.00 | infobox |
| Epson HX-20 | Input | Full-transit keyboard | 1.00 | infobox |
| Epson HX-20 | Introductory price | US$795 (today $2570) | 1.00 | infobox |
| Epson HX-20 | Manufacturer | Epson | 1.00 | infobox |
| Epson HX-20 | Memory | 16 KB RAM expandable to 32 KB 32 KB ROM expandable to 64 KB | 1.00 | infobox |
| Epson HX-20 | Power | rechargeable nickel-cadmium batteries | 1.00 | infobox |
| Epson HX-20 | Released | July 1982; 44 years ago (July 1982) | 1.00 | infobox |
| Epson HX-20 | Type | Notebook computer | 1.00 | infobox |
| Epson HX-20 | Weight | Approximately 1.6 kg | 1.00 | infobox |
The concept neighborhoods around Epson HX-20 bring nearby vocabulary together. In this analysis, examples include Epson, Hx-20 and Hc-20. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For Epson HX-20, one of the stronger structural bridges in this analysis connects Epson HX-20 with Features. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around Epson HX-20 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Applications, Literary Connections & Products, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — Epson HX-20 · EN edition · Analysis: TopicsToTalkAbout