A printed circuit board (PCB) is a board made of both conducive and non-conductive materials onto which components can be soldered to create a circuit. The circuit connections are made via copper traces on the board. An example PCB is shown in Figure 1.
Cadence is an electronic computer-aided drafting (ECAD) program commonly used in industry for the design and simulation of electronic circuits and printed circuit boards. The following video by Casey Petersen describes the basics of Cadence: