Explain some major technological innovations made in the 20^th century

some major technological innovations made in the 20th century are -

1. The Personal Computer

Computers had been around since World War Two, but they were heavy and massively expensive units that didn’t have all the features that today’s computers have. When Steve Jobs and Steve Wozniak from Apple computers introduced the world’s first personal computer in 1976, the world changed forever. The Apple computer was smaller, affordable and could do more than just calculate. Today we use the personal computers for a range of tasks, including staying in touch with our loved ones, designing logos, selling real estate, looking after our finances, creating and even watching movies… the list is endless! It makes it hard to understand how our ancestors did so well without them!

2. Nuclear Power

The invention of nuclear power can be thought of as a breakthrough in terms of clean energy. Suddenly humanity had a power source that didn’t pollute (unlike fossil fuels), was efficient and practically unlimited. Unfortunately, along with this new energy source, came the creation of nuclear weapons. The fear of ultimate destruction __________ _________ ____ ____ _______ _____ _______ ______ ___ _________ ___ ________.
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