Moore's law of components, "a component being a transistor, resistor, diode or capacitor", at minimum cost. Transistors per integrated circuit – The most popular formulation is of the doubling of the number of transistors on integrated circuits every two years. At the end of the 1970s, Moore's law became known as the limit for the number of transistors on the most complex chips. The graph at the top shows this trend holds true today. Density at minimum cost per transistor – This is the formulation given in Moore's 1965 paper. It is not just about the density of transistors that can be
Rule of 72 by 200/(200−"r") as follows: For example, if the interest rate is 18%, the rule of 69.3 says "t" = 3.85 years. The E-M rule multiplies this by 200/(200−18), giving a doubling time of 4.23 years, where the actual doubling time at this rate is 4.19 years. (The E-M rule thus gives a closer approximation than the rule of 72.) Note that the numerator here is simply 69.3 times 200. As long as the product stays constant, the factors can be modified arbitrarily. The E-M rule could thus be written also as in order to keep the product mostly unchanged. In