Technology is the application of science to solve a problem, create tools and processes.
Technology is the purposeful application of information in the design, production and utilization of goods and services, and in the organization of human activities.
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Humans have used technology for over 5000 years - I would even say that advancements in technology have always benefited the way we live. Energy (a system's ability to perform work) has been the key in this regard. A gallon of petrol costs £5 and provides energy equivalent to 500 hours of human labour worth £3700. In other words, the amount of work that oil performs for you is equivalent to having hundreds of slaves working round the clock! Even the kings did not have the comfortable & luxurious life style that an average middle class family now enjoys - thanks to technological breakthroughs that made all this possible.
Technology evolves incrementally except on occasions when some breakthrough (generally, the availability of a cheaper & more efficient source of energy) engenders a quantum shift in our capabilities. This can create a big improvement in the way we live - an industrial revolution (IR). For example:
1784: Water and steam power helped to mechanize production - First IR
1870: Electric power made mass production possible - Second IR
1970: Electronics, information technology allowed automated production - Third IR
Now, a fourth Industrial Revolution is building on the third. It is characterized by a fusion of the physical, digital and biological technologies. The fourth IR will fundamentally alter the way we live, work and relate to one another. In its scale, scope and complexity, the transformation will be unlike anything humankind has experienced before. Technological capabilities are increasing exponentially - changes are happening at unprecedented speed throughout the world - changes that are disrupting all industries in every respect. Transport, communications, efficiency and productivity in manufacturing will benefit and steer economic growth.
All aspects of peoples' personal lives will be impacted seriously with unforeseen consequences for privacy, identity etc.