Computers play a critical role in improving human beings’ quality of life and making processes more efficient. Each invention has a ripple effect because it triggers people’s quest for further improvement and sets the platform for attaining more progress. Computer technology has taken a long winding path to reach today, and the Colossus computer is a significant forebearer that made the journey possible. Even as more efficient and effective computer technologies are invented, the Colossus will retain its history as the first modern electric computer that users could program completely.