A capasitor is an electronic component that exists out of two relatively large conductor(s), that exist close to each other, devided by an isolator.
This ability or capacity(therefore capasitor) is expressed in a unit: Farad(symbol "F"). A capasitor that is charged with 1 Coulomb, with a Voltage of 1, has the capasity of 1 Farad.
The first capasitor was the "Leidse Fles"(Leidse "Bottle"). Invented in the University of Leiden, by Pieter van Musschenbroek.
There are different types of capasitors;
-the ones that are in you're Personal Computer or Television on "chip-plates": you know those that look like small fixed batteries;
-elekrolythical(high capacity, relative low ohms resistance, generally used for stabilisation of electrical tension (elco)
-plastic "film" as an isolator
-flexible(for example in a radio to tune)
-oilcapasitors(for high capacity)