User talk:JAYASHREE B M

Computer A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use1 JAYASHREE B MADAPPANAVAR Functionalities of a computer2 Any digital computer carries out five functions"Computer system" redirects here. For other uses, see Computer (disambiguation) and Computer system (disambiguation). Computer Acer Aspire 8920 Gemstone.jpg Columbia Supercomputer - NASA Advanced Supercomputing Facility.jpg Intertec Superbrain.jpg 2010-01-26-technikkrempel-by-RalfR-05.jpg Thinking Machines Connection Machine CM-5 Frostburg 2.jpg G5 supplying Wikipedia via Gigabit at the Lange Nacht der Wissenschaften 2006 in Dresden.JPG DM IBM S360.jpg Acorn BBC Master Series Microcomputer.jpg Dell PowerEdge Servers.jpg Computers and computing devices from different eras A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks.

Computers are used as control systems for a wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer-aided design, and also general purpose devices like personal computers and mobile devices such as smartphones.

Early computers were only conceived as calculating devices. Since ancient times, simple manual devices like the abacus aided people in doing calculations. Early in the Industrial Revolution, some mechanical devices were built to automate long tedious tasks, such as guiding patterns for looms. More sophisticated electrical machines did specialized analog calculations in the early 20th century. The first digital electronic calculating machines were developed during World War II. The speed, power, and versatility of computers have been increasing dramatically ever since then.

Conventionally, a modern computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logical operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices include input devices (keyboards, mice, joystick, etc.), output devices (monitor screens, printers, etc.), and input/output devices that perform both functions (e.g., the 2000s-era touchscreen). Peripheral devices allow information to be retrieved from an external source and they enable the result of operations to be saved and retrieved. in gross terms.