I want to know the answer to the following question:
Why are capacitors connected in parallel with the power circuits of many devices and large systems?
All the background I'm provided with is that "Capacitors are connected in parallel with the power circuits of most electronic devices and larger systems (such as factories) to shunt away and conceal current fluctuations from the primary power source to provide a "clean" power supply for signal or control circuits.". Is that enough to answer the question?
Answer: yes