# A♯

> programming language

**Wikidata**: [Q4659444](https://www.wikidata.org/wiki/Q4659444)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/A_Sharp_(Axiom))  
**Source**: https://4ort.xyz/entity/a-q4659444

## Summary
A♯ (A Sharp) is a functional programming language originally developed in 1971 by the IBM Thomas J. Watson Research Center. It is a cross-platform language distributed under BSD licenses and is distinct from the similarly named programming language A#.

## Key Facts
- **Inception:** The language was created in 1971.
- **Developer:** It was developed by the IBM Thomas J. Watson Research Center.
- **Paradigm:** A♯ is a functional programming language.
- **License:** The language is distributed under BSD licenses.
- **Platform:** It operates on a cross-platform basis.
- **Website:** The official online resource is located at http://axiom-developer.org.
- **Aliases:** It is also known as "A sharp."
- **Differentiation:** It is explicitly different from the entity identified as A#.

## FAQs
### Q: What type of programming language is A♯?
A: A♯ is classified as a functional programming language, a paradigm that treats computation as the evaluation of mathematical functions.

### Q: Who created A♯ and when?
A: A♯ was developed by the IBM Thomas J. Watson Research Center in 1971.

### Q: Is A♯ the same language as A#?
A: No, according to structured data, A♯ is distinct from and "different from" the programming language A#.

## Why It Matters
A♯ holds historical significance as an early implementation of functional programming principles within a major corporate research environment (IBM). Originating in 1971, it represents the experimental era of language design that sought to move beyond imperative programming models. Its continued association with the domain of functional languages highlights its role in the broader taxonomy of computer science history. The language serves as a case study in the longevity of specific language concepts, maintained as a cross-platform tool under open-source BSD licenses. Its distinction from A# is critical for accurate classification in taxonomies of programming languages, preventing conflation between two syntactically similar but historically distinct entities.

## Notable For
- **Early Adoption:** Being a functional programming language created as early as 1971.
- **Prestigious Origin:** Development by IBM Thomas J. Watson Research Center.
- **Nomenclature:** Distinct identity separate from A#, despite the visual similarity in names.
- **Accessibility:** Availability under BSD licenses and support for cross-platform environments.

## Body
### Historical Context and Development
A♯ was conceived in 1971 at the IBM Thomas J. Watson Research Center. As a functional programming language, it was designed to utilize principles of functional programming, distinct from the procedural paradigms more common in that era. The project is documented under the title "A Sharp (Axiom)" and maintains a presence via the axiom-developer.org domain.

### Technical Classification
The language is formally classified as an instance of a "programming language" and more specifically a "functional programming language." It is designed to be cross-platform, allowing for utility across different operating systems. The licensing model is based on the BSD licenses, permitting broad usage and distribution.

### Identity and Relations
A♯ is explicitly categorized as "different from" A#. While the raw data indicates it was influenced by external entities (identified in source data as Q34010 and Q81571), it maintains a unique entry in knowledge bases with a specific Freebase ID (/m/08jcqx). It is categorized as copyrighted software.