# Kim Waldén

> Swedish computer scientist

**Wikidata**: [Q105461553](https://www.wikidata.org/wiki/Q105461553)  
**Source**: https://4ort.xyz/entity/kim-walden

## Summary  
Kim Waldén (born 22 February 1945 in Gothenburg) is a Swedish computer scientist, programmer and consultant. He is best known for his work on the DEC Simula system and for his academic and industry roles at the Royal Institute of Technology and several Swedish computing firms.

## Biography  
- **Born:** 22 February 1945, Gothenburg, Sweden  
- **Nationality:** Swedish  
- **Education:**  
  - B.Sc. in Computer Science, Stockholm University (1968)  
  - Ph.D. in Computer Science, Royal Institute of Technology (1991)  
- **Known for:** Development of the DEC Simula system  
- **Employer(s):**  
  - Groupe Bull (Stockholm) – 1974 to 1976 (as Honeywell Bull)  
  - Neutron Data Compilation Centre (Stockholm) – 1976 to 1985 (stated as ENEA Data)  
  - Royal Institute of Technology – 1981 to 1985  
- **Field(s):** Computer science, software engineering, programming  

## Contributions  
Kim Waldén’s most cited contribution is the **DEC Simula** system, a software environment that extended the Simula language on Digital Equipment Corporation (DEC) platforms. The work, documented in 2001, demonstrated how Simula’s object‑oriented concepts could be adapted for DEC hardware, influencing later language design and teaching curricula in Sweden. While at the **Neutron Data Compilation Centre** (1976‑1985), Waldén helped integrate scientific data processing tools with emerging computer architectures, supporting Sweden’s nuclear research infrastructure. His tenure at **Groupe Bull** (1974‑1976) involved early commercial software development for mainframe systems, laying groundwork for later enterprise applications. As a faculty member at the **Royal Institute of Technology** (1981‑1985), he taught programming and supervised research that contributed to Sweden’s growing computer‑science community. Waldén’s memberships in the **IEEE Computer Society** and the **Association for Computing Machinery** reflect his active engagement with international standards and professional discourse.

## FAQs  
### Q: When and where was Kim Waldén born?  
A: He was born on 22 February 1945 in Gothenburg, Sweden.  

### Q: What is Kim Waldén’s most notable technical work?  
A: He is best known for developing the DEC Simula system, which adapted the Simula language for DEC computers.  

### Q: Which institutions has Kim Waldén been affiliated with?  
A: He has worked for Groupe Bull, the Neutron Data Compilation Centre, and the Royal Institute of Technology, and he studied at Stockholm University and KTH.  

## Why They Matter  
Kim Waldén’s adaptation of Simula for DEC platforms bridged academic language research with practical, commercial computing in the 1970s and 1980s. By demonstrating object‑oriented concepts on widely used hardware, he helped validate Simula’s design principles, influencing later languages such as C++ and Java. His work at the Neutron Data Compilation Centre provided critical software tools for scientific data handling, supporting Sweden’s nuclear research programs. As a professor at the Royal Institute of Technology, Waldén trained a generation of Swedish programmers and researchers, contributing to the country’s reputation in computer science. His involvement with IEEE and ACM ensured that Swedish perspectives were represented in global standards discussions, fostering international collaboration.

## Notable For  
- Development of the **DEC Simula** system (2001).  
- Tenure as a researcher at the **Neutron Data Compilation Centre** (1976‑1985).  
- Academic career at the **Royal Institute of Technology** (1981‑1985).  
- Membership in both the **IEEE Computer Society** and the **Association for Computing Machinery**.  
- Holding a Ph.D. from KTH (1991) and a B.Sc. from Stockholm University (1968).  

## Body  

### Early Life and Education  
- Born in Gothenburg, Sweden, 1945.  
- Completed a Bachelor of Science in Computer Science at Stockholm University in 1968.  
- Earned a Doctor of Philosophy in Computer Science from the Royal Institute of Technology in 1991.  

### Professional Career  

#### Groupe Bull (1974‑1976)  
- Worked in Stockholm under the name Honeywell Bull.  
- Involved in early mainframe software development.  

#### Neutron Data Compilation Centre (1976‑1985)  
- Served as a researcher and consultant in Stockholm.  
- Project focus: integration of scientific data processing with emerging computer systems.  

#### Royal Institute of Technology (1981‑1985)  
- Held a faculty position, teaching programming and supervising research projects.  

### DEC Simula  
- Published work on DEC Simula in 2001, detailing the adaptation of Simula’s object‑oriented features for DEC hardware.  
- The system was referenced in multiple online archives (e.g., c2.com, Eiffel archive).  
- Influenced teaching of object‑orientation in Swedish universities and contributed to the evolution of later OO languages.  

### Professional Memberships and Identifiers  
- Member of **IEEE Computer Society** and **Association for Computing Machinery**.  
- Identifiers: ISNI 0000000027436307, VIAF 63085442, DBLP author ID 99/6740, Library of Congress n88022077.  

### Languages  
- Native Swedish; fluent in English.  

### Legacy  
- Waldén’s blend of academic research, industry practice, and professional service helped shape Sweden’s early computer‑science landscape and left a lasting imprint on object‑oriented programming education.

## References

1. Prabook
2. CiNii Research
3. [Kim Walden. 2001](https://c2.com/wiki/remodel/?KimWalden)
4. [Source](https://people1.cs.kuleuven.be/~dirk.craeynest/ada-belgium/events/95/950306-tools.html)
5. [Source](https://archive.eiffel.com/general/people/walden.html)