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"I was perfectly satisfied to write science fiction knowing that it would pay very little, that it would be seen by only a very few people."
- Isaac Asimov

Schrön Loop  
  Small data storage device; a USB chip that stores terabytes.  

This item is a data storage device, capable of storing all of the information in a planetary datasphere in just a very small (cubic inch) space. This item reminds me of the small USB data devices that plug into PCs for quick download and storage - this is basically how the device is used in the novel.

The Schrön loop was tiny, no larger than my thumbnail, and very expensive. It held countless field-bubble memories, each capable of holding near infinite bits of information. Schrön loops could not be accessed by the biological carrier and thus were used for courier purposes. A man or woman could carry AIs or complete planetary dataspheres in a Schrön loop.
Technovelgy from Hyperion, by Dan Simmons.
Published by Doubleday in 1989
Additional resources -

In the novel, the device is implanted in one of the characters as a storage device; the character cannot access the data.

Compare to the Welton cube from Time Enough For Love (1973) by Robert Heinlein.

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Additional resources:
  More Ideas and Technology from Hyperion
  More Ideas and Technology by Dan Simmons
  Tech news articles related to Hyperion
  Tech news articles related to works by Dan Simmons

Schrön Loop-related news articles:
  - Lexar 8Gb Compact Flash Memory Doubles The Record
  - 2 Terabyte Memory Sticks Coming
  - E-Disk Altima 416GB Flash Drive World's Highest Capacity
  - Terabyte Thumb Drives Using Programmable Metallization Cell (PMC) Tech
  - Graphene Memory Arrays Are Stackable, Awesome
  - Terabyte Flash Drive In 2012
  - DataTraveler Ultimate Generation 2 Terabyte Flashdrive
  - One Terabyte Thumbdrive - DataTraveler HyperX Predator 3.0
  - Samsung 840 Evo 1TB Solid-State Drive
  - Revault Wearable Private Cloud Is Too Vaporous
  - Six Terabyte Solid State Drive Just 2.5 Inches
  - 100 Terabyte Exadrive SSD Also Has Biggest Price

Articles related to Data Storage
Lonestar Offers Lunar Storage For Ultimate In Security
100X Improvement In DNA Information Storage
Twist Bioscience High Density Digital Data On DNA
Store One Bit On One Atom

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