The document describes a smart note taker (SNT), which allows users to take notes using a pen that stores handwritten notes digitally. It discusses the features and components of the SNT, including sensors, a processor, memory, and communication unit. The document explains that the SNT senses pen displacement and stores recognized letters in memory. Notes can then be uploaded and edited on a connected PC or laptop. Current SNT products include PC and mobile note takers that capture and store handwritten notes digitally in real-time. Advantages include ease of use and time savings, while disadvantages include high cost.