Power inverter for car (for laptop), touch pad (Synaptics), Zip file compression (does not work on compressed files), 3D printer operation (use slice CAM model), keeping Chrome from saving passwords, Profiles in IT (Mark Dean, co creator of IBM PC), open vs closed computer architecture (Mac vs PC), Windows 3.1 30 years old, and mushrooms communicate with each other (using hyphae threads, mimic human language). This show originally aired on Saturday, April 9, 2022, at 9:00 AM EST on WFED (1500 AM).