Interactive map loads when it comes into view.
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
Research this topic
Explore the main themes, entities and connections around DR-DOS. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Explore this topic
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
History
214 related topics
Commands
77 related topics
Overview
18 related topics
Controversies
2 related topics
Key facts & relationships
High-confidence facts extracted from structured source data. Use them as anchors for further research.
- Available in
- English, older versions also in German, French, Italian, Spanish, Japanese
- Default user interface
- Command-line interface (COMMAND.COM)
- Developer
- Digital Research · Novell · Caldera · DeviceLogics · Whitehorn Ltd. Co.
- Initial release
- May 28, 1988; 38 years ago (1988-05-28)
- Kernel type
- Monolithic kernel
- Latest release
- 9.0.648 / May 2, 2026; 3 months ago (2026-05-02)
Topics to explore
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.Browse the full topic structure. Each item opens a new analysis centered on that subject.
Overview
- Disk operating system
- IBM PC compatibles IBM PC compatible
- Gary A. Kildall
- Digital Research
- Concurrent PC DOS
- CP/M-86
- Compatible Binary compatibility
- IBM PC DOS
- MS-DOS
- Retail
- Microsoft
- Graphical user interface
- ViewMAX
- Novell
- Caldera Caldera (company)
- Open-source
- Desktops Desktop computer
- DeviceLogics
History
- CP/M
- Intel 8080
- Z80 Zilog Z80
- Intel 8086
- 8088 Intel 8088
- IBM PC
- IBM
- X86
- 86-DOS
- Seattle Computer Products
- CP/M 2.2
- Basic Disk Operating System
- US$ United States dollar
- MP/M-86
- Concurrent CP/M-86
- Concurrent DOS 3.1
- Multiuser DOS
- REAL/32
- DOS Plus 1.0
- 2.1 DOS Plus 2.1
- Concurrent DOS 4.1
- 5.0 Concurrent DOS 5.0
- Pacific Grove Pacific Grove, California
- Monterey Monterey, California
- Newbury Newbury, Berkshire
- Concurrent DOS 386
- XM Concurrent DOS XM
- Hungerford Hungerford, Berkshire
- Munich
- OEMs Original equipment manufacturer
Controversies
Commands
- TRUENAME
- Internal Shell builtin
- Commands Command (computing)
- APPEND APPEND (DOS command)
- BREAK BREAK (DOS command)
- CD CD (DOS command)
- CHCP CHCP (DOS command)
- CHDIR CHDIR (DOS command)
- CLS CLS (DOS command)
- COPY COPY (DOS command)
- CTTY CTTY (DOS command)
- DATE DATE (DOS command)
- DEL DEL (DOS command)
- DELQ DELQ (DOS command)
- DIR DIR (DOS command)
- ERA ERA (DOS command)
- ERAQ ERAQ (DOS command)
- ERASE ERASE (DOS command)
- EXIT EXIT (DOS command)
- HILOAD HILOAD (DOS command)
- IDLE IDLE (DOS command)
- MD MD (DOS command)
- MKDIR MKDIR (DOS command)
- MORE MORE (DOS command)
- PATH PATH (DOS command)
- PROMPT PROMPT (DOS command)
- RD RD (DOS command)
- REN REN (DOS command)
- RENAME RENAME (DOS command)
- RMDIR RMDIR (DOS command)
Advanced semantic analysis
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
Map overview Semantic statistics
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.DR-DOS
Nodes316
Edges315
Triples96
Avg. degree1.99
Density0.006329
Components1
How this topic connects Entity context
Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.See the strongest relationship patterns around the current topic before diving into the raw triples.
DR-DOS
Top relations
related to After Novell · 18
DR-DOS → Between, Caldera, Caldera-owned DR-DOS, Canopy Group, Claimed, DOS, IBM's PC DOS, Immediately, January, July, Microsoft, Novell, November, OpenLinux, Salt Lake City, This, When Caldera, Windows
related to Later versions · 17
DR-DOS → Controversies, DeviceLogics, DPMI, DRDOS, FAT32, Flash, GPL, In, Inc, Lineo, Lineo's, March, OpenDOS, ROM, The, They, This
related to DR DOS 9.0 · 14
DR-DOS → April, Caldera, Co, DR DOS, EDR-DOS, FreeDOS, In January, In March, Intel, NASM, Registration, The, Whitehorn, Whitehorn Ltd
related to Controversies · 8
DR-DOS → After, DR DOS, Enhanced DR-DOS, FreeDOS, GNU General Public License, GPL, In October, Inc
Developer · 5
DR-DOS → Caldera, DeviceLogics, Digital Research, Novell, Whitehorn Ltd. Co.
related to External links · 3
DR-DOS → DOS Wiki, Enhanced DR-DOS/OpenDOS ProjectDR-DOS, Official
Available in · 1
DR-DOS → English, older versions also in German, French, Italian, Spanish, Japanese
Default user interface · 1
DR-DOS → Command-line interface (COMMAND.COM)
Initial release · 1
DR-DOS → May 28, 1988; 38 years ago (1988-05-28)
Kernel type · 1
DR-DOS → Monolithic kernel
Important terminology Word statistics
Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
Important terminology
dos dr novell digital version system research ms-dos pc support also caldera inc operating bdos new memory kernel internal versions
Entity relationships Subject–Predicate–Object triples
Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| DR-DOS | Available in | English, older versions also in German, French, Italian, Spanish, Japanese | 1.00 | infobox |
| DR-DOS | Default user interface | Command-line interface (COMMAND.COM) | 1.00 | infobox |
| DR-DOS | Developer | Digital Research | 1.00 | infobox |
| DR-DOS | Developer | Novell | 1.00 | infobox |
| DR-DOS | Developer | Caldera | 1.00 | infobox |
| DR-DOS | Developer | DeviceLogics | 1.00 | infobox |
| DR-DOS | Developer | Whitehorn Ltd. Co. | 1.00 | infobox |
| DR-DOS | Initial release | May 28, 1988; 38 years ago (1988-05-28) | 1.00 | infobox |
| DR-DOS | Kernel type | Monolithic kernel | 1.00 | infobox |
| DR-DOS | Latest release | 9.0.648 / May 2, 2026; 3 months ago (2026-05-02) | 1.00 | infobox |
| DR-DOS | License | Proprietary | 1.00 | infobox |
| DR-DOS | Official website | dr-dos.com | 1.00 | infobox |
| DR-DOS | OS family | DOS | 1.00 | infobox |
| DR-DOS | Source model | Mixed; primarily closed-source, some versions open-source | 1.00 | infobox |
| DR-DOS | Supported platforms | x86 | 1.00 | infobox |
| DR-DOS | Working state | In active development | 1.00 | infobox |
| DR-DOS | is a | disk operating system for IBM PC compatibles | 0.90 | text |
No triples extracted yet.
Related concept clusters Concept neighborhoods
Clusters of nearby vocabulary surrounding the topic. Scan them for adjacent concepts and language you may have missed.These clusters group vocabulary that occurs around closely connected concepts in the source material.
Connections between topic areas Semantic bridges
Bridge nodes connect otherwise separate parts of the map. Expand a row to inspect the topic groups on each side.Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.
For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.