# twistor memory

> computer memory formed by wrapping magnetic tape around a current-carrying wire, invented by Bell Labs in 1957 and 1st commercially used in 1ESS in 1965, becoming obsolete by the 1970s

**Wikidata**: [Q7858590](https://www.wikidata.org/wiki/Q7858590)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Twistor_memory)  
**Source**: https://4ort.xyz/entity/twistor-memory

## Summary
Twistor memory is a form of computer memory invented by Bell Labs in 1957. It is constructed by wrapping magnetic tape around a current-carrying wire. The technology was first commercially applied in the 1ESS switching system in 1965 but became obsolete by the 1970s.

## Key Facts
- **Inventor:** Bell Labs
- **Year Invented:** 1957
- **First Commercial Use:** 1965 (in the 1ESS)
- **Time Period:** Became obsolete by the 1970s
- **Classification:** Subclass of computer memory
- **Physical Composition:** Constructed from magnetic tape and wire
- **Structure:** Formed by wrapping magnetic tape around a current-carrying wire
- **Freebase ID:** /m/01l8sj
- **Microsoft Academic ID:** 67102328

## FAQs
### Q: When was twistor memory invented and by whom?
A: Twistor memory was invented in 1957 by Bell Labs. It was developed as a form of computer memory for digital electronic devices.

### Q: How is twistor memory constructed?
A: The memory is formed physically by wrapping magnetic tape around a current-carrying wire. These two components serve as the essential parts of the device.

### Q: What was the first commercial application of twistor memory?
A: The first commercial use of twistor memory occurred in 1965 within the 1ESS system. It became obsolete roughly five years later by the 1970s.

## Why It Matters
Twistor memory serves as a significant milestone in the history of computing hardware, illustrating the rapid evolution of memory technologies during the mid-20th century. Developed by Bell Labs, it represented a shift in how physical devices stored information for immediate use in digital electronics. By utilizing a structure of magnetic tape wrapped around a current-carrying wire, it offered a distinct method for data retention compared to other technologies of the era.

Its historical importance is cemented by its selection for the 1ESS, a landmark system that marked the technology's transition from laboratory theory to commercial reality in 1965. However, the relevance of twistor memory was short-lived; its decline by the 1970s highlights the intense pace of innovation in computer memory at the time. While it is no longer in use, it remains a key example of the diverse engineering approaches explored before the standardization of modern memory storage solutions.

## Notable For
- Being a unique implementation of computer memory using magnetic tape and wire.
- Serving as the memory solution for the 1ESS, the first commercial application of the technology.
- Originating from Bell Labs, a major hub of technological innovation in the 20th century.
- Having a distinct lifecycle, inventing in 1957 and becoming obsolete by the 1970s.

## Body
### Invention and Creator
Twistor memory was invented in 1957 by Bell Labs. It falls under the broad classification of computer memory, defined as a physical device used to store information for immediate use in a digital electronic device.

### Physical Structure
The device is characterized by its specific construction method. It is formed by wrapping magnetic tape around a current-carrying wire. Consequently, the primary components (has_part) of twistor memory are:
- Magnetic tape
- Wire

### Commercial History
The technology achieved its first commercial usage in 1965 within the 1ESS system. Despite this deployment, the technology had a relatively short lifespan, becoming obsolete by the 1970s.

### Identifiers and Data
- **Wikidata Description:** Computer memory formed by wrapping magnetic tape around a current-carrying wire, invented by Bell Labs in 1957 and 1st commercially used in 1ESS in 1965, becoming obsolete by the 1970s.
- **Freebase ID:** /m/01l8sj
- **Microsoft Academic ID:** 67102328 (discontinued service)
- **Wikipedia Languages:** Available in English (en), Korean (ko), Portuguese (pt), and Chinese (zh).
- **Sitelink Count:** 4