Technology refers to techniques or skills used in the production of goods or services. Early humans like Neanderthals used simple tools like spears and sharpened rocks for hunting, skinning animals, and chopping wood. Mastering the use of fire allowed early humans to stay warm, cook food, and ward off predators, freeing up more time to develop new technologies. Over thousands of years, technologies advanced from basic stone tools to modern inventions like cars, phones, and computers.