The Casio fx-602p is programmable scientific calculator released in March 1981. Users can record and play back keystrokes, effectively allowing them to create custom programs. Memory: It features a significant amount of memory (512 steps) for its time, allowing both programs and data to be stored. Programs could be stored separately in their own dedicated memory locations P0 to P9. Alphanumeric display: It has a dot-matrix display that can show letters and symbols, making it easier to work with program names and labels. Constant memory: It includes a function that allows constant values to be stored and used in calculations. Lots of information about this collectible calculator can be found on the internet, such as videos and an explanation of how it works. The calculator is in good condition with some user traces. The calculator/manual will be packed carefully.