These include games, a calculator, calendar, notepad, and a sketchpad. The visuospatial sketchpad stores visual and spatial information. GEUP is a more calculus-oriented analog of The Geometer's Sketchpad. R. is a free GPL analog of The Geometer's Sketchpad (GSP), written in Java. The other is Nicholas Jackiw, a software designer known for inventing The Geometer's Sketchpad. Links to The Geometer's Sketchpad diagrams are provided for key points. Cinderella, written in Java, is very different from The Geometer's Sketchpad. The suite includes Sticky Notes, Sketchpad, and Screen sketch applications. The next subsection is the visuospatial sketchpad which works to store visual images. The other slave system, the visuospatial sketchpad, stores visual and spatial information. The visuospatial sketchpad holds information about what we see. The phonological loop stores verbal content, whereas the visuo-spatial sketchpad caters to visuo-spatial data. The earliest graphical manipulation program was called Sketchpad. Sutherland created an interactive computer-aided design program called Sketchpad. Baddeley's model of working memory states that visual information is stored in the visuo-spatial sketchpad.