An SVG version of Tony Pritchett's Butterfly: The GRAM Butterfly. He used this as a check that a move to a new computer had been successful.
Papers describing GRAM, the system used at the BBC/Open University for creating simple animations that was used on a variety of host computers by Tony Pritchett:
- GRAM: GRAphic Macrogenerator for the OU (long version)
- Resurrection Paper: GRAM, an extended GPM (short version)
GRAM was used to create one of the computer displays used in the film Alien.