In his later years, George "turned to non-verbal uses of the computer". Specifically, he used his Amiga to create computer art.
This is what he said about it in a letter to the department chair in 1990:
His daughter has generously given the department George's floppy disks with his original artwork on them. They were done on an Amiga and we have spent quite some effort in converting them to a readable format (as we lack an Amiga).
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