Using a modest IBM mainframe, a Photon phototypesetter, and a Flexowriter
keyboard, he had started his experiments with the typesetting of the Lewis Carroll poem shown here.
Many of the machines developed during this time used punch tape cards created by a typewriter-like machine known as the "flexowriter
." The cards were fed into a large control unit adjacent to the machinery and imprinted with a programming sequence called G-Code, named after the company that developed it, Gerber Scientific Instruments.
It is similar to TYPECS except that the six-bit numbers now represent KDF9 flexowriter
Back then, the church used Flexowriter