IELTS Reading Practice: [7.0] The History of Early Computing

[7.0] The History of Early Computing
The history of computing dates back far beyond the modern digital age. The first known mechanical computing device was the Analytical Engine, designed by Charles Babbage in the mid-19th century. Although it was never fully built during his lifetime due to mechanical limitations, it laid the groundwork for future developments.
In the early 20th century, computers were primarily mechanical or electro-mechanical devices used for specific calculations, such as those required in cryptography and engineering. However, the real transformation came during World War II. The development of the Colossus computer in Britain and the ENIAC in the United States marked the transition from mechanical to fully electronic computing.
These early computers paved the way for the rapid advancements seen in the latter half of the 20th century. With the invention of the transistor in the 1940s and the microprocessor in the 1970s, computers became smaller, more powerful, and increasingly accessible to the public. This led to the digital revolution, fundamentally altering the way people work, communicate, and think about information.