CADS - There are many excellent drawing software available, but most rely on
dexterity using the Mouse. Apart from using the Mouse to quickly change the
operating point, these two CADS rely entirely on the use of the keys thus
enabling intricate drawing pixel by pixel. The program PlansCircuits can be
used to draw electronic or printed circuits and plans, while the program
PrintedCKT is just for Printed Circuits. (in Graphics)