WHY DO I NEED VP AND VPM SOFTWARE, TABLES AND ROM SETS TO PLAY VISUAL PINBALL?

While electromechanical (EM) pinball machines run with relays, switches and motors only, Solid-state (SS) pinball machines contain a 'micro-processor unit' (MPU) which, like any computer, requires an operating system and data to work, in 'real life' these bits and bytes are programmed into one or more (P)ROM chips plugged to the MPU.

VP and VPM cooperate to recreate the SS pinballs: VP controls the EM part, e. g. most of the playfield objects, while VPM emulates the MPU functions, using a zipped ROM set file that contains images of all the real ROMs of the particular table, and creates the score display (LED or DMD).

Rule of thumb:

EM tables are VP tables, don't use ROM sets and only require Visual Pinball for playing.

SS tables are VPM tables, need at least one ROM set, VP and VPM for proper function.