
Computer - Miniaturization, Transistors, Chips | Britannica
2025年12月22日 · Computer chips themselves are designed with CAD programs that let an engineer write a specification for part of a chip, simulate its behavior in detail, test it thoroughly, and then …
Computer - Home Use, Microprocessors, Software | Britannica
2025年12月22日 · Computer - Home Use, Microprocessors, Software: Before 1970, computers were big machines requiring thousands of separate transistors. They were operated by specialized …
Computer Control, Process Automation, Robotics - Britannica
2025年10月24日 · Although other automated systems are typically controlled by computer, the term computer process control is generally associated with continuous or semicontinuous production …
John Mauchly | Biography, Computer, & Facts | Britannica
2026年1月4日 · John Mauchly (born August 30, 1907, Cincinnati, Ohio, U.S.—died January 8, 1980, Ambler, Pennsylvania) was an American physicist and engineer, co-inventor in 1946, with John P. …
Binary number system | Definition, Example, & Facts | Britannica
6 天之前 · The importance of the binary system to information theory and computer technology derives mainly from the compact and reliable manner in which 0s and 1s can be represented in …
Photosynthesis | Definition, Formula, Process, Diagram, Reactants ...
2026年1月16日 · Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is …
Computer-aided engineering | 3D Modeling, Simulation & Analysis ...
In engineering, computer models of newly designed structures undergo simulated tests to determine their responses to stress and other physical variables. Simulations of river systems can be …
Sojourner Truth | Biography, Accomplishments, & Facts | Britannica
2026年1月16日 · Sojourner Truth was an African American evangelist and reformer who applied her religious fervor to the abolitionist and women’s rights movements. Obeying a supernatural call to …
Digital computer | Evolution, Components, & Features | Britannica
Since the development of the Harvard Mark I, the digital computer has evolved at a rapid pace. The succession of advances in computer equipment, principally in logic circuitry, is often divided into …
Computer memory | Types, Capacity & Speed | Britannica
2025年12月22日 · Computer memory is divided into main (or primary) memory and auxiliary (or secondary) memory. Main memory holds instructions and data when a program is executing, while …