ParSim v1.0 is a 3D particle simulator application for TI-83/84-series graphing calculators. It can simulate and display 3D static and dynamic electric and magnetic fields as well as particles of all velocities, positions, charges, and masses. The simulator output is displayed in a graphical interface that automatically adjusts for optimal output of the data at hand. It assumes a k-constant of 1, so charges, masses, and velocities should be expressed on the scale of 10^0th integers for the elementary particles. For some reason, it only took about a week to complete. Have fun!