Trilobit Fossil


  Historical Archive
  Old Computers and Work of Jörg Roth

     
   

 Old Computers 

 Old Work 

 Old Pictures 


Jörg Roths Homepage

Email email 

Impressum 

Datenschutzerklärung 

Privacy Policy 


German This page
in German

















   

Here is a gallery of my first computers...

ZX Spectrum

My first computer: a ZX Spectrum

Performance features:

  • Z80A with 3,5 MHz
  • 48 kByte RAM
  • 16 kByte ROM
  • Graphik resolution 256 x 192 pixels
  • Microdrive with 85 kByte storage space each cardrigde


Speech Genarator

My first self-made device: a speech synthesizer

This device can be attached to a computer via the printer interface. It produced spoken text of each data sent to the printer interface.

Performance features:

  • Z80A with 4 MHz
  • Operating system programmed in assembler
  • Input of text via the centronics interface
  • Grammer-driven convertation of text into phonemes (for German texts)
  • Speech output by the speech generator chip SP0256A-AL2


Complete 4 Computer

Another self-made device: a complete four computer

Performance features:

  • Z80A with 4 MHz
  • Operating system programmed in assembler
  • Choice moves via seven keys, countermoves are displayed via seven LEDs
  • Min-Max countermove algorithm with Alpha-Beta cut
  • Variable depth of countermove computation up to seven moves


Some of my old work survises the times...
(sorry only German work)

Jörg Roth:
Explorationsstrategien für autonome mobile Roboter in Indoor-Umgebungen
Diplomarbeit im Rahmen des Forschungsprojektes Mobot-IIIC, Universität Kaiserslautern, Fachbereich Informatik, Dezember 1991
PDF
Jörg Roth:
Merkmalextraktion aus Sensordaten mit Hilfe der Krümmungsfunktionn
Projektarbeit im Rahmen des Projekts MOBOT-III, Universität Kaiserslautern, Fachbereich Informatik, Juni 1990
PDF
Jörg Roth:
Einführung in natürlichsprachliche Textgenerierung
Seminar „Natürlichsprachliche Systeme“, Universität Kaiserslautern, 1989
PDF
Jörg Roth:
Proportionalschrift für den Spectrum
Happy Computer, Mai 1985, 94-95
PDF
Jörg Roth:
Stimmbänder für Heimcomputer
Funkschau 21/1984, 71-72
PDF
Jörg Roth:
Approximation nach der Methode der kleinsten Fehlerquadrate
Facharbeit, Max-Planck-Gymnasium Trier, 1984
PDF

Old Pictures

As a student I conducted a private raytracing project in 1991. The whole story.

Hitchhiker Desktop Church Monument
Museum Easter Island Game Worms
Babel Fish Fortytwo Nutrimatic Bubbles