The most important technology of the last century is ? (The computer)

When humans observe their current surroundings, it becomes overtly clear that our civilization has evolved to the highest degree.  Where humans once held a stone tablet and a chisel, they now grasp a keyboard, instead of burning scrap piles of wood, they use microwave radiation for heat, and the automobile has substituted most, if not all, primitive forms of transportation.  All of these life altering and advancing inventions mentioned only hint at the marvels of the modern world.  These affluent creations that help construct a tranquil, comfortable and often longer life for human beings are habitually taken for granted.  Rebecca Einarson, a woman who at the time of her interview was 102 years old and lived in 3 different centuries claims that   technology is moving so fast it s making my head spin1….(short extract)