Topic summary
digital computer
Extracted from the Wikipedia article Computer.
Programmable machine that processes dataComputers and computing devices from different eras—left to right, top to bottom: Early vacuum-tube computer (ENIAC)Mainframe computer (IBM System/360)Smartphone (LYF Water 2)Desktop computer (IBM ThinkCentre S50 with monitor)Supercomputer (IBM Summit)A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations (computation). Modern digital electronic computers can perform generic sets of operations known as programs, which enable computers to perform a wide range of tasks. The term computer system may refer to a nominally complete computer that includes the hardware, operating system, software, and peripheral equipment needed and used for full operation, or to a group of computers that are linked and function together, such as a computer network or computer cluster. Numbering only a few in the 1930s, today computers are ubiquitous over a broad range of industrial and consumer products that use computers as control systems. The price, size, and complexity of computers can range from simple single-purpose devices like key fobs, microwave ovens, and remote controls up to supercomputer