Our logo depicts a computer main memory (RAM) core from the 1960s. Thousands of such magnetic cores were in each core plane addressable (accessible) by their X and Y (horizontal and vertical) wire windings. The third, diagonal winding was the sense winding. Each X and Y was a separate wire, and to select a certain core, its own X and Y wires had to be activated. The sense winding was a single wire winding through the entire core plane. Each core was tiny and could barely fit on the tip of a sharpened pencil. Here is a rough sketch of a small portion of a single core plane. Many such planes were required for the RAM memory of a mainframe computer. (The winding pattern for the sense winding may vary. Another example is shown here, from Wikipedia.)
Sometimes I draw a memory core with wires extended vertically to form a cross or with a stylized core or windings to metaphorically depict something else (such as a caduceus for medical informatics), or for my book title pages.
29.June.2024