DJ Dates


Moore’s Law as Illustrated using Blowtorches and Calculators

The $100 calculator from 1972 shown in this video would have actually cost the equivalent of $525 in 2010 dollars due to inflation.

This video is licensed under the creative commons BY-NC-SA license. Please feel free to use this video in your classroom.

In 1972, my dad bought this four function calculator for $100.

Today we can buy a little four function calculator with the same capabilities for just $1.

Moore’s Law is the adage that the number of transistors that can be put on a single microchip doubles every two years. Because computers are limited to a fraction of the speed of light, the smaller and denser we can make computer chips, the more powerful and capable computers can become. However, another benefit is that computers and digital devices continually get smaller and cheaper, like our calculator.