The work of a capacitor in a computer is the same as the work of a capacitor in any electric/electronic circuitry and system: decouple rf noise off supply and signal lines by acting as a filter, block DC from one circuit to another working as a timing device as in the schmitt trigger, to form integration circuits and differentiation circuits. read more
Similar to a microprocessor, a memory chip is an integrated circuit (IC) made of millions of transistors and capacitors. In the most common form of computer memory, dynamic random access memory (DRAM), a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. read more