# Altera Hardware Description Language

> proprietary hardware description language (HDL)

**Wikidata**: [Q292803](https://www.wikidata.org/wiki/Q292803)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Altera_Hardware_Description_Language)  
**Source**: https://4ort.xyz/entity/altera-hardware-description-language

## Summary
Altera Hardware Description Language is a proprietary hardware description language (HDL) classified as a formal programming language used to communicate instructions to a machine. It serves as a domain-specific tool within computer science for defining and controlling the behavior of digital hardware systems.

## Key Facts
- Classified as a **proprietary hardware description language (HDL)**.
- An **instance of a programming language**, placing it within the broader domain of computer science and computer languages.
- Identified by several aliases, including **Ahdl** and **알테라 하드웨어 기술 언어** (Korean).
- Features a **Freebase ID** of `/m/09qgq_`.
- Listed in academic databases with a **Microsoft Academic ID** of 2780066851 (discontinued).
- Documented across **9 Wikipedia languages**, including German, English, Spanish, Japanese, Korean, Polish, Russian, Turkish, and Ukrainian.
- Possesses a **sitelink count** of 9, indicating significant cross-language documentation.
- As a programming language, it consists of components such as **syntax**, **semantics**, an **execution model**, and a **type system**.

## FAQs
### Q: What type of language is Altera Hardware Description Language?
A: It is a proprietary hardware description language (HDL) that falls under the classification of a programming language, specifically designed to communicate instructions to hardware.

### Q: Is Altera Hardware Description Language open source?
A: No, the language is explicitly defined as a proprietary hardware description language, meaning it is owned and controlled by a specific entity rather than being open source.

### Q: In which languages is documentation for Altera Hardware Description Language available?
A: Documentation and references are available in at least nine languages, including English, German, Spanish, Japanese, Korean, Polish, Russian, Turkish, and Ukrainian.

### Q: What are the core components of Altera Hardware Description Language?
A: As a programming language, it comprises standard components such as syntax rules, semantics, an execution model, and a type system, which are essential for defining algorithms and manipulating data within computing systems.

## Why It Matters
Altera Hardware Description Language matters because it provides a structured, formal method for humans to instruct complex hardware, bridging the gap between human intent and machine execution. By serving as a proprietary HDL, it enables the precise definition of digital logic and electronic systems, which is fundamental to the field of computer engineering. Its status as a programming language underscores its role in the foundation of modern computing, facilitating the automation of hardware design and the management of logical operations. The availability of resources in multiple languages highlights its global relevance and utility in diverse technical and academic communities.

## Notable For
- Being a **proprietary** solution within the hardware description language (HDL) domain.
- Holding a specific **Microsoft Academic ID** (2780066851), indexing it within academic literature.
- Having a distinct **Freebase ID** (/m/09qgq_) for knowledge graph integration.
- Possessing a broad international presence with **Wikipedia entries in nine different languages**.
- Functioning as a **domain-specific** implementation of broader programming language theory.

## Body
### Definition and Core Purpose
Altera Hardware Description Language functions as a formal language utilized to communicate instructions to a machine, specifically targeting hardware definition and control. As an instance of a programming language, it acts as an intermediary between human intent and machine execution. It provides a structured way to define algorithms and manipulate data within computing systems, adhering to the core principles of computer science.

### Identity and Classification
The language is technically classified as a programming language, a subclass of computer languages. It is distinctively identified as a proprietary hardware description language (HDL). It is known by several aliases, including "Ahdl" and "알테라 하드웨어 기술 언어." Within structured data repositories, it is linked to specific identifiers such as the Freebase ID `/m/09qgq_` and the Microsoft Academic ID `2780066851`.

### Structure and Components
As a programming language, Altera Hardware Description Language consists of several core elements inherent to the class:
- **Syntax**: Rules defining valid code structure.
- **Semantics**: The meaning behind syntactic constructs.
- **Execution Model**: The framework defining how programs run.
- **Type System**: Mechanisms for data classification and error prevention.
These components allow developers to write code that controls computer behavior, processes data, and executes tasks related to hardware logic.

### Global Documentation and Reach
The language's significance is reflected in its documentation across multiple knowledge bases and linguistic regions. It has a sitelink count of 9, corresponding to Wikipedia editions in German (de), English (en), Spanish (es), Japanese (ja), Korean (ko), Polish (pl), Russian (ru), Turkish (tr), and Ukrainian (uk). This extensive coverage facilitates access to information and community support for a global user base.

### Relationship to Programming Language Theory
Altera Hardware Description Language is a practical application of **programming language theory**, the branch of computer science focused on designing, implementing, and analyzing languages. While it is a domain-specific tool, it shares the theoretical underpinnings of general-purpose programming languages, supporting the study of syntax, execution models, and type systems within the context of hardware design.

## References

1. Freebase Data Dumps. 2013