Final answer:
Computer classes are described from different perspectives: physical, design, and commonsense. The evolution of computers from early models to present day has significantly changed society, communication, and technology. Computer scientists and engineers design these systems, contributing to major advancements in various fields.
Step-by-step explanation:
Classes of a computer can be described by considering various perspectives, such as its physical level, design level, and commonsense level. At the physical level, a computer is a series of electronic changes as seen by engineers. At the design level, according to programmers, the computer runs programs. From the commonsense level, the user sees the computer as a device for tasks like word processing or solving equations.
Throughout history, the evolution of computers has been significant. From the early HB85B computer of the 1980s to the development of personal computers by companies like Apple and IBM, computers have fundamentally changed communication, education, and the organization of society. They perform complex computations in fields such as engineering and science, guide airplanes, control car engines, store vast amounts of information, and connect us through the Internet.
Computer scientists and engineers design computers and create software that helps in controlling systems and devices like automobile engines and artificial limbs, contributing to fields such as Microsoft, Apple, and Hewlett Packard. Moreover, as the digital technology is to the information societies, computers are like the steam engine of the industrial era, transforming the economy and society.
The innovation of microprocessors, which are integrated circuits that implement a computer processor, has continued to push the boundaries, allowing computers to store, manipulate data, and execute a vast array of functions, becoming an essential part of technology since the Computer Age began in the 1940s and 1950s.