How did personal computers make computing more available to schools and small businesses?

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Personal computers revolutionized access to computing by shifting the technology from room-sized, expensive mainframes—which were operated by specialized technicians and restricted to large organizations—to affordable, mass-produced desktop units.123

Several key factors facilitated this transition for schools and small businesses:

  • Technological Innovation: The development of the microprocessor allowed for powerful computing on a single semiconductor chip, drastically reducing the size and cost of hardware.34
  • Market Availability: In 1977, the introduction of preassembled, mass-produced machines like the Apple II, the Tandy TRS-80, and the Commodore PET made computers accessible to individuals and small organizations at breakthrough prices.53
  • Practical Software: The emergence of application software, such as VisiCalc (the first electronic spreadsheet) and word processors, provided immediate, tangible utility for business forecasting and administrative tasks.63
  • Standardization: The entry of IBM in 1981 legitimized the field, and the subsequent rise of "IBM clones" created a competitive market that lowered costs and ensured software compatibility across different hardware brands.783