# Edgar F. Codd

> English computer scientist (1923–2003)

**Wikidata**: [Q92596](https://www.wikidata.org/wiki/Q92596)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Edgar_F._Codd)  
**Source**: https://4ort.xyz/entity/edgar-f-codd

## Summary
Edgar F. Codd (1923–2003) was a distinguished English computer scientist and mathematician who invented the relational model for database management. During his career at IBM, he established the theoretical foundations for how modern databases store and manipulate data, for which he received the Turing Award in 1981.

## Biography
- **Born:** August 19, 1923, Isle of Portland
- **Nationality:** United Kingdom, United States
- **Education:** Exeter College, University of Michigan, Poole Grammar School
- **Known for:** Invention of the relational model for database management and Codd's cellular automaton
- **Employer(s):** IBM
- **Field(s):** Computer science, Mathematics

## Contributions
Edgar F. Codd’s most significant contribution to the field of computer science was the development of the relational model. In 1970, he published his landmark work, "A relational model of data for large shared data banks," which proposed organizing data into tables (relations) to allow for greater data independence. This work moved database management away from rigid hierarchical and network structures toward a system based on predicate logic and set theory.

Beyond database theory, Codd contributed to the study of computation through the creation of "Codd's cellular automaton." His professional career was primarily spent at IBM, where he achieved the rank of IBM Fellow. His academic influence was also established through his role as a university teacher and his doctoral research at the University of Michigan, where he studied under doctoral advisor John Henry Holland. His work provided the essential framework for the software and IT service management industries, leading to the development of modern relational database management systems (RDBMS).

## FAQs
### Q: What is Edgar F. Codd's most famous achievement?
A: He is best known for inventing the relational model for database management, which he detailed in his 1970 paper "A relational model of data for large shared data banks."

### Q: What major awards did Edgar F. Codd receive?
A: Codd received the Turing Award in 1981, the Computer Pioneer Award in 1996, and was named both an IBM Fellow and an ACM Fellow (1994).

### Q: Where did Edgar F. Codd work?
A: He was a long-time employee and Fellow at IBM, the American multinational technology corporation.

## Why They Matter
Edgar F. Codd fundamentally transformed the way information is organized and accessed globally. Before his relational model, data retrieval was technically cumbersome and required users to understand the physical storage of information. By introducing a mathematical framework for data, Codd enabled "data independence," allowing software and data structures to evolve separately. 

His work is the direct precursor to the multi-billion dollar database industry and the SQL standards used by nearly every modern enterprise today. Without Codd’s contributions, the scalability and efficiency of modern data-driven applications—from financial systems to web search engines—would not exist in their current form. His legacy is cemented by his membership in the American Academy of Arts and Sciences and his recognition as one of the most influential figures in the history of computer science.

## Notable For
*   **Turing Award (1981):** Received the highest honor in computer science for his contributions to database management.
*   **Relational Model:** Author of the seminal 1970 paper that defined modern database architecture.
*   **IBM Fellow:** Achieved the highest technical rank at IBM for his innovative research.
*   **Codd's Cellular Automaton:** Developed a specific cellular automaton model contributing to the study of computation.
*   **ACM Fellow:** Recognized as a Fellow of the Association for Computing Machinery in 1994.

## Body
### Academic and Professional Background
Edgar Frank "Ted" Codd was born on August 19, 1923, in the Isle of Portland, United Kingdom. He was educated at Poole Grammar School and Exeter College before moving to the United States. He completed his doctoral studies at the University of Michigan under the supervision of John Henry Holland. Codd held dual citizenship in the United Kingdom and the United States.

### Career at IBM
Codd spent the majority of his professional life at IBM, a technology corporation headquartered in Armonk, New York. His work at IBM focused on the software and computer industries, specifically within the realm of IT service management. For his exceptional technical contributions, he was appointed an IBM Fellow.

### Scientific Contributions and Publications
*   **Relational Database Theory:** Codd's primary field of work was computer science. His 1970 publication, "A relational model of data for large shared data banks," is considered one of the most important papers in the history of the field.
*   **Cellular Automata:** He is the namesake of Codd's cellular automaton, a contribution to the study of computation.
*   **Mathematics:** In addition to being a computer scientist, Codd was a mathematician and university teacher, applying mathematical rigor to data structures.

### Awards and Honors
Codd received numerous prestigious awards throughout his career:
*   **Turing Award:** 1981
*   **ACM Fellow:** 1994
*   **Computer Pioneer Award:** 1996
*   **Membership:** American Academy of Arts and Sciences.
*   **Erdős Number:** 7

### Death
Edgar F. Codd died on April 18, 2003, in Aventura, Florida. His death was attributed to natural causes following a myocardial infarction.

```json
{
  "@context": "https://schema.org",
  "@type": "Person",
  "name": "Edgar Frank Codd",
  "jobTitle": "Computer Scientist",
  "worksFor": {
    "@type": "Organization",
    "name": "IBM"
  },
  "nationality": [
    {
      "@type": "Country",
      "name": "United Kingdom"
    },
    {
      "@type": "Country",
      "name": "United States"
    }
  ],
  "birthDate": "1923-08-19",
  "birthPlace": "Isle of Portland",
  "deathDate": "2003-04-18",
  "deathPlace": "Aventura",
  "alumniOf": [
    {
      "@type": "EducationalOrganization",
      "name": "Exeter College"
    },
    {
      "@type": "EducationalOrganization",
      "name": "University of Michigan"
    },
    {
      "@type": "EducationalOrganization",
      "name": "Poole Grammar School"
    }
  ],
  "knowsAbout": [
    "Computer Science",
    "Relational Model",
    "Mathematics",
    "Cellular Automata"
  ],
  "sameAs": [
    "https://www.wikidata.org/wiki/Q92739",
    "https://en.wikipedia.org/wiki/Edgar_F._Codd"
  ],
  "description": "English computer scientist and Turing Award winner who invented the relational model for database management."
}

## References

1. Integrated Authority File
2. [Source](https://amturing.acm.org/award_winners/codd_1000892.cfm)
3. [Source](https://awards.acm.org/award_winners/codd_1000892#140)
4. [Source](https://awards.acm.org/award_winners/codd_1000892#158)
5. International Standard Name Identifier
6. Virtual International Authority File
7. CiNii Research
8. [Source](https://awards.acm.org/fellows/award-recipients)
9. [Source](http://amturing.acm.org/award_winners/codd_1000892.cfm)
10. [Source](http://www.theregister.co.uk/2013/08/19/ted_codd_90_relational_daddy/?page=2)
11. [Source](http://www.britannica.com/EBchecked/topic/914158/Edgar-Frank-Codd)
12. SNAC
13. Great Norwegian Encyclopedia
14. Freebase Data Dumps. 2013