Liked on YouTube: All about Computer Parts from Computer Study Part-1

All about Computer Parts from Computer Study Part-1

All about Computer Parts from Computer Study PDP-11 CPU board Computer hardware are the physical parts or components of a computer, such as the central processing unit, monitor, keyboard, computer data storage, graphic card, sound card and motherboard.[1] By contrast, software is instructions that can be stored and ran by hardware. Hardware is directed by the software to execute any command or instruction. A combination of hardware and software forms a usable computing system. "Computer system" redirects here. For other uses, see Computer (disambiguation) and Computer system (disambiguation). Computer Acer Aspire 8920 Gemstone.jpgColumbia Supercomputer - NASA Advanced Supercomputing Facility.jpgIntertec Superbrain.jpg 2010-01-26-technikkrempel-by-RalfR-05.jpgThinking Machines Connection Machine CM-5 Frostburg 2.jpgG5 supplying Wikipedia via Gigabit at the Lange Nacht der Wissenschaften 2006 in Dresden.JPG DM IBM S360.jpgAcorn BBC Master Series Microcomputer.jpgDell 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. Contents 1 Etymology 2 History 2.1 Pre-20th century 2.2 First computing device 2.3 Analog computers 2.4 Digital computers 2.5 Modern computers 2.6 Mobile computers 3 Types 3.1 Based on uses 3.2 Based on sizes 4 Hardware 4.1 History of computing hardware 4.2 Other hardware topics 4.3 Input devices 4.4 Output devices 4.5 Control unit 4.6 Central processing unit (CPU) 4.7 Arithmetic logic unit (ALU) 4.8 Memory 4.9 Input/output (I/O) 4.10 Multitasking 4.11 Multiprocessing 5 Software 5.1 Languages 5.2 Application Software 5.3 Programs 6 Firmware 7 Networking and the Internet 8 Unconventional computers 9 Unconventional computing 10 Future 10.1 Computer architecture paradigms 10.2 Artificial intelligence 11 Professions and organizations 12 See also 13 References 14 Notes 15 External links Etymology A computer, with microscope and calculator, 1952 According to the Oxford English Dictionary, the first known use of the word "computer" was in 1613 in a book called The Yong Mans Gleanings by English writer Richard Braithwait: "I haue [sic] read the truest computer of Times, and the best Arithmetician that euer [sic] breathed, and he reduceth thy dayes into a short number." This usage of the term referred to a human computer, a person who carried out calculations or computations. The word continued with the same meaning until the middle of the 20th century. From the end of the 19th century the word began to take on its more familiar meaning, a machine that carries out computations.[1] The Online Etymology Dictionary gives the first attested use of "computer" in the "1640s, [meaning] "one who calculates,"; this is an "... agent noun from compute (v.)". The Online Etymology Dictionary states that the use of the term to mean "calculating machine" (of any type) is from 1897." The Online Etymology Dictionary indicates that the "modern use" of the term, to mean "programmable digital electronic computer" dates from "... 1945 under this name; [in a] theoretical [sense] from 1937, as Turing machine"
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