Research any topic before you write.
Find related topics. | Discover entities. | See connections. | Build a topical map.
The TRS-80 Micro Computer System (TRS-80, colloquially known as the "Trash-80", later renamed the TRS-80 Model I to distinguish it from its successors) is a desktop microcomputer developed by American company Tandy Corporation and sold through their Radio Shack stores. Launched in 1977, it is one of the earliest mass-produced and mass-marketed retail…
History, Companies & Products
Explore the main themes, entities and connections around TRS-80. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. 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.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
model radio shack basic tandy iii computer disk software trsdos drives ii level keyboard kb also floppy cassette drive interface
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| TRS-80 | CPU | Zilog Z80 @ 1.774 MHz | 1.00 | infobox |
| TRS-80 | Discontinued | January 1981; 45 years ago (1981-01) | 1.00 | infobox |
| TRS-80 | Display | Monochrome 12" CRT, 64 × 16 character semigraphics | 1.00 | infobox |
| TRS-80 | Introductory price | US$599.95 (equivalent to $3,190 in 2025) | 1.00 | infobox |
| TRS-80 | Lifespan | 1977–1981 | 1.00 | infobox |
| TRS-80 | Manufacturer | Tandy Corporation | 1.00 | infobox |
| TRS-80 | Memory | 4–48 KB | 1.00 | infobox |
| TRS-80 | Operating system | TRSDOS, LDOS, NewDos/80, Level I BASIC | 1.00 | infobox |
| TRS-80 | Released | August 3, 1977; 49 years ago (1977-08-03) | 1.00 | infobox |
| TRS-80 | Sound | Square wave tones | 1.00 | infobox |
| TRS-80 | Type | Home computer | 1.00 | infobox |
| TRS-80 | Units sold | >100,000 (as of 1979) | 1.00 | infobox |
| TRS-80 | Units sold | 2.4 million (all models) | 1.00 | infobox |
| TRS-80 | is a | lot of computer for the money | 0.90 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.