section_path: Workers/Equipment and technology
section_name: Equipment and technology
paragraph_text: Equipment and technology
  
  Tool use has been a central aspect of human evolution and is also an essential feature of work. Even in technologically advanced societies, many workers' toolsets still include a number of smaller hand-tools, designed to be held and operated by a single person, often without supplementary power. This is especially true when tasks can be handled by one or a few workers, do not require significant physical power, and are somewhat self-paced, like in many services or handicraft manufacturing.
  
  For other tasks needing large amounts of power, such as in the construction industry, or involving a highly-repetitive set of simple actions, like in mass manufacturing, complex machines can carry out much of the effort. The workers present will focus on more complex tasks, operating controls, or performing maintenance. Over several millennia, invention, scientific discovery, and engineering principles have allowed humans to proceed from creating simple machines that merely redirect or amplify force, through engines for harnessing supplementary power sources, to today's complex, regulated systems that automate many steps within a work process.
  
  In the 20th century, the development of electronics and new mathematical insights led to the creation and widespread adoption of fast, general-purpose computers. Just as mechanization can substitute for the physical labor of many human beings, computers allow for the partial automation of mental work previously carried out by human workers, such as calculations, document transcription, and basic customer service requests. Research and development of related technologies like machine learning and robotics continues into the 21st century.
  
  Beyond tools and machines used to actively perform tasks, workers benefit when other passive elements of their work and environment are designed properly. This includes everything from personal items like workwear and safety gear to features of the workspace itself like furniture, lighting, air quality, and even the underlying architecture.