Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Latest By
Category:


Armor
Artificial Intelligence
Biology
Clothing
Communication
Computers
Culture
Data Storage
Displays
Engineering
Entertainment
Food
Input Devices
Lifestyle
Living Space
Manufacturing
Material
Media
Medical
Miscellaneous
Robotics
Security
Space Tech
Spacecraft
Surveillance
Transportation
Travel
Vehicle
Virtual Person
Warfare
Weapon
Work

"[Science fiction] is the one literary medium left in which we have a free hand. We can do any damn thing we please."
- Alfred Bester

Holo-Printing  
  Errors introduced in data storage media when recording under improper conditions.  

This phenomenon (on computer tape drives and disk drives) was probably known by the time Dick wrote the novel, but he makes epic use of it.

In this scene, Fred is watching holographic surveillance data and notices a problem.

And then, as Fred watched, Connie's hard features melted and faded into softness, and into Donna Hawthorne's face...

Standing, Fred walked into the holo-cube, into the three-dimensional projection, and stood close to the bed to scrutinize the girl's face.

Halfway between, he decided. Still half Connie; already half Donna...

...maybe it's a visual interruption or breakdown electronically, he pondered. What they call printing. Holo-printing: from one section of the tape storage to another. If the tape sits too long, if the recording gain was too high initially, it prints across. Jeez, he though. It printed Donna across from a previous or later scene, maybe from the living room.

Technovelgy from A Scanner Darkly, by Philip K. Dick.
Published by Doubleday in 1977
Additional resources -

It's interesting to compare what Philip K. Dick describes in the novel with actual software used to retrieve images from damaged hard drives. This from a document on using Symantec Norton Ghost:

Incorrect operation and use of the Ghosting programs may lead to very serious consequences, as the data previously held on the hard disk that is to receive the image will often be completely overwritten. This is not always the case though, as sometimes the disk receiving the image may be considerably larger than the original disk. Ghosting to a disk of this type will almost certainly destroy the file system and root directory structure but some of the data that was previously on the hard disk may still be recoverable. Other problems exist too, such as Ghosting in the wrong direction, unexpected program termination or system crash...

In the novel, Dick finishes manipulating the reader by having Fred continue watching the hologram. Arctor watches Donna sleeping, then watches her face turn into Connie's. It was not technical interference.

Comment/Join this discussion ( 0 ) | RSS/XML | Blog This |

Additional resources:
  More Ideas and Technology from A Scanner Darkly
  More Ideas and Technology by Philip K. Dick
  Tech news articles related to A Scanner Darkly
  Tech news articles related to works by Philip K. Dick

Articles related to Computer
Great. Now AIs Have Access To Hacking Tools
Tongue-Controlled Tong Wearable Mouth Computer
Interpol Launches Metaverse For Law Enforcement
AVATECT Prevents Spoofing Of Avatars

Want to Contribute an Item? It's easy:
Get the name of the item, a quote, the book's name and the author's name, and Add it here.

<Previous
Next>

Google
  Web TechNovelgy.com   

 

 

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Science Fiction Invention Timeline, or see what's New.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Science Fiction in the News

Wearable Energy Harvester
'... he had tightened the chest to gain maximum pumping action from the motion of breathing.'

Drones Participate In Buddhist Rites
'...a prayer wheel swung into view and began spinning at a furious pace.'

Anna Indiana AI Singer-Songwriter
'She is a personality-construct, a congeries of software agents'

Video Manicuring ala Schismatrix
'The program raced up the screen one scan line at a time'

'Feel the AGI' OpenAI Leader Now OpenWorship
'And are all the people willing to be governed by a machine?'

NASA Tests Prototype Europa Lander
Why have legs if they don't walk around?

Tailsitter Drone Aircraft For SAR
'...it was so easy for me to remain motionless in midair.'

Forward CarePod The AI Doctor's Office
'It's an old model,' Rawlins said. 'I'm not sure what to do.'

Mika The Robot-Boss
'the robot-boss was busy at the lip of the new lode instructing and egging the men on to greater speed...'

Yamaha Motoroid 2 No Handlebars Self-Balancing Motorcycle
'He rode the bike with an intense lack of physical grace...'

More SF in the News

More Beyond Technovelgy

Home | Glossary | Science Fiction Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.