This impact print by Manuel Barbadillo would have served as a trial piece, or research, for a later work that would have been produced by hand, such as the two screenprints in the V&A's collection (e.g. see E.99-2008). Barbadillo wrote a computer program that enabled him to rotate the U-shaped forms within a grid, to produce a large number of different variations. The set of figures in the top left corner, labelled 'Cuadro Numero 1' (meaning 'Table Number 1'), demonstrates how Barbadillo altered the numerical values in the computer program to explore the relationship of one U-shaped motif to another. Barbadillo would then compare the different outcomes in a larger sequence to decide which image was the most successful and should be developed further. By using the computer as a tool, Barbadillo was able to process much larger quantities of information than would otherwise have been possible.

This work was produced using a line printer, which was an early form of impact printer. Like a type writer, impact printers use force to literally stamp the ink onto the paper. Print-outs were restricted to black and white, and darker areas or shading could only be achieved by overwriting one character on top of another.