Electronics | Devices, Facts, & History | Britannica
2024年10月25日 · Electronics, branch of physics and electrical engineering that deals with the emission, behaviour, and effects of electrons and with electronic devices. Electronics encompasses an exceptionally broad range of technology.
electrical and electronics engineering - Encyclopedia Britannica
Electronics engineering is the branch of electrical engineering which deals with the uses of the electromagnetic spectrum and the application of such electronic devices as integrated circuits and transistors.
Electronics - Components, Circuits, Technology | Britannica
2024年10月25日 · Electronics - Components, Circuits, Technology: Since electronics is concerned with the control of the motion of electrons, one must keep in mind that electrons, being negatively charged, are attracted to positive charges and repelled by other negative charges.
Electronics - Digital, Circuits, Components | Britannica
2024年10月25日 · electronic system. Computers understand only two numbers, 0 and 1, and do all their arithmetic operations in this binary mode. Many electrical and electronic devices have two states: they are either off or on. A light switch is a familiar example, as …
Electronics - Semiconductor, Revolution, Technology | Britannica
2024年10月25日 · Electronics - Semiconductor, Revolution, Technology: The invention of the transistor in 1947 by John Bardeen, Walter H. Brattain, and William B. Shockley of the Bell research staff provided the first of a series of new devices with remarkable potential for expanding the utility of electronic equipment (see photograph).
Technology | Definition, Examples, Types, & Facts | Britannica
2024年10月21日 · Technology is the application of scientific knowledge to the practical aims of human life or, as it is sometimes phrased, to the change manipulation of the human environment. From hand tools to computers and engineering, technology encompasses it all.
History of Technology Timeline | Britannica
The first computers that emerged after World War II were gigantic, but, with advances in technology, especially in putting many transistors on a semiconductor chip, computers became both smaller and more powerful. Finally, they became small enough for home use.
History of technology | Evolution, Ages, & Facts | Britannica
2024年10月23日 · History of technology, the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek techne, ‘art, craft,’ with logos, ‘word, speech,’ meant in Greece a discourse on the arts, both fine and applied.
Definition, History, Operating Systems, & Facts - Britannica
A computer is a programmable device for processing, storing, and displaying information. Learn more in this article about modern digital electronic computers and their design, constituent parts, and applications as well as about the history of computing.
Electronic system | technology | Britannica
Between 1955 and 1990, improvements and innovations in semiconductor technology increased the performance and decreased the cost of electronic materials and devices by a factor of one million—an achievement unparalleled in the history of any technology.