1)   Rimu PCB 1.07 Rimu PCB is an easy to use, cost effective electronic printed circuit board (PCB) layout application. Features: Export Gerber RS274X and Excellon NC drill. Import ASCII netlist. Design rule checking. Multiple Undo / Redo. 2)   Resistor Values 2.1 Resistor Values is an electrical engineering program that will calculate the value of a 4 band resistor. 3)   ProSchematic 1.01.001 A shareware schematic editor for drawing and publishing electronic circuit diagrams; operating on Windows and Linux with built in netlister and Bill of Materials generator. Schematics can be transferred across operating systems.