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The Information Train

  • Diomidis Spinellis
Chapter

Abstract

The increased application of software-controlled digital electronics hinders the understanding of how things work. The information train is a scientific experiment exhibit that physically demonstrates how computers communicate. It comprises a network in which a model Lego train acts as a physical carrier transferring a picture’s pixels from one computer to the other. The sending end computer scans a simple picture, and directs a model train to send that pixel to the receiving end computer. This is done by sensing the approaching train and switching a rail junction depending on whether a pixel is on or off. The train carries on its top a piece that rotates depending on the train’s route, thus carrying the data between the two computers. At the receiving end, two sensors detect the shape’s orientation allowing the receiving-end computer to reassemble the picture bit-by-bit, pixel-by-pixel. The receiving-end computer is a One Laptop per Child (OLPC) XO-1 machine, programmed using Etoys. This provides further opportunities for motivated adventurous children to interact with the experiment’s implementation.

Keywords

Device Driver Digital Converter Analog Draw Function Sender Side State Machine Diagram 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of Management Science and TechnologyAthens University of Economics and BusinessAthensGreece

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