You are now in the directory "cad".
Here are the one-line descriptions for each items in this directory:
acs-0.21: A general purpose circuit simulator. chipmunk-5.10: An electronic CAD system. felt-3.02: A system for Finite Element Analysis irsim-9.4.1: An event-driven logic-level simulator for MOS circuis. kaskade-3.1.1: Adaptive linear scalar elliptic and parabolic problem solver magic-6.5: An interactive editor for VLSI layouts. mars-2.1: Maryland Routing Simulator pcb-1.6.3: X11 interactive printed circuit board layout system sis-1.2.1: Synthesis program for the synthesis of sequential circuits. spice-3f5: A general-purpose circuit simulation program xcircuit-1.7: An X11 drawing program [especially for circuit schematics]