# backspace

> computer keyboard key used to delete the character preceding the cursor

**Wikidata**: [Q798515](https://www.wikidata.org/wiki/Q798515)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Backspace)  
**Source**: https://4ort.xyz/entity/backspace

## Summary
The backspace is a computer keyboard key used to delete the character preceding the cursor. It is classified as a physical button on a computer keyboard (computer key) and is distinct from the "delete" key, which typically removes characters following the cursor. It is represented by the Unicode character ⌫ and often abbreviated as "Bksp."

## Key Facts
- **Classification**: Instance of a "computer key" (a physical button on a computer keyboard).
- **Primary Function**: Used to delete the character preceding the cursor.
- **Symbol**: Represented by the Unicode character **⌫** (U+232B).
- **Abbreviation**: Often referred to by the short name **Bksp**.
- **Aliases**: Known variably as backspace key, Mac delete key, Retour arriere, Rücktaste, Control-H, or ^H.
- **Relationship to Delete Key**: Structurally defined as the "opposite" of the delete key based on relative direction.
- **Differentiation**: Distinct from the "Delete" key found on Apple keyboards and the left arrow key.

## FAQs
### Q: What is the specific function of the backspace key?
A: The backspace key is used to delete the character immediately preceding the text cursor. This differentiates it from the delete key, which typically removes characters ahead of the cursor.

### Q: Is the backspace key the same as the delete key?
A: No. While they share similarities, they are distinct entities. Backspace is the "opposite" of the delete key regarding the direction of deletion. On Apple keyboards, the key labeled "Delete" functions as backspace (deleting preceding characters).

### Q: What symbols or names represent backspace?
A: The standard Unicode symbol for backspace is ⌫. It is also abbreviated as "Bksp" and referred to as "Rücktaste" in German or "Retour arriere" in French contexts.

### Q: How is backspace represented in terminal environments?
A: In terminal contexts, backspace is often represented by the control character ^H (Control-H).

## Why It Matters
The backspace key is a fundamental component of human-computer interaction, serving as the primary mechanism for corrective text editing. By allowing users to remove the character immediately preceding the cursor, it facilitates the seamless correction of typing errors without disrupting the flow of text entry. Its classification as the "opposite" of the delete key highlights the bidirectional control users have over text manipulation on modern keyboards.

The key's ubiquity is evidenced by its presence across 27 different Wikipedia language editions and its standardization under ISO symbols. Its implementation varies slightly by platform—most notably on Apple keyboards where the key is labeled "Delete" but performs the backspace function—demonstrating its essential role regardless of nomenclature. Without this specific "relative direction" deletion capability, text editing would require more complex highlighting or navigation commands, significantly slowing down productivity.

## Notable For
- **Directional Deletion**: Specifically deletes the character *preceding* the cursor, unlike the forward-acting delete key.
- **Apple Keyboard Identity**: Functions identically to the key labeled "Delete" on Mac keyboards.
- **Universal Symbol**: Standardized with the "⌫" symbol in Unicode.
- **Terminal Legacy**: Historically represented as ^H (Control-H) in computing terminals.
- **Global Nomenclature**: Known by specific names in various languages, such as "Rücktaste" (German) and "Retour arriere" (French).

## Body
### Classification and Definition
The backspace is formally classified as an **instance of a computer key**, defined as a physical button on a computer keyboard. Its primary and defining utility is to **delete the character preceding the cursor**. This specific action distinguishes it from other keys that modify text or move the cursor.

### Visual Representation and Symbols
The entity is associated with specific visual identifiers used across interfaces:
- **Unicode**: The character **⌫** serves as the universal symbol for the function.
- **Icons**: Standardized icons include ISO 7000 Ref-No 2023 and the Font Awesome 5 solid backspace SVG.
- **Imagery**: Photographic references are categorized under "Backspace" on Wikimedia Commons.

### Key Relationships and Differentiation
The backspace key occupies a specific relational slot in keyboard hierarchies:
- **Opposite Of**: It is considered the opposite of the **delete key**, with the specific qualifier "criterion used: relative direction." This refers to the backward deletion of backspace versus the forward deletion of the standard delete key.
- **Different From**:
    - **Delete Key**: Specifically distinguished from the "Delete" key found on non-Apple keyboards and the "Delete" [Apple keyboards] key (which technically performs a forward delete in some contexts, though the source notes the alias "Mac delete key" for backspace).
    - **Arrow Key**: Distinguished from the **left arrow key**, which moves the cursor without deleting content.

### Aliases and Identifiers
The key is recognized by a variety of names and technical IDs depending on the system and language:
- **Short Names**: Bksp.
- **Technical Aliases**: ^W, Control-H (^H).
- **International Aliases**: Retour arriere (French), Rücktaste (German).
- **Database IDs**:
    - **Wikidata**: Q bond implied by properties.
    - **Freebase ID**: /m/03zm8v.
    - **Quora Topic**: Backspace-3.
    - **Niconicopedia ID**: バックスペース.
    - **WikiKids ID**: Backspace.

## References

1. Freebase Data Dumps. 2013
2. Quora