Computer Techonology

Wednesday, December 29, 2010

Computer Hardware and software


Computer hardware are the parts of the computer itself including the Central Processing Unit(CPU) and related microchips and micro-circuitry ,keyboards ,monitors, case and drivers (hard, CD,DVD, floppy,  optical, tape, etc..). Other parts called Peripheral components or devices include mouse, printers, modems, scanner, digital cameras and cards(sound, color, video..).Together they are often referred as a personal computer.
Computer software is the collection of computer programs and related data that provide the instructions telling a computer  what to do. We can also say software refers to one or more computer programs and data held in the storage of the computer for some purposes. Program software performs the function of the program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software. The term was coined to contrast to the old term hardware (meaning physical devices). In contrast to hardware, software is intangible, meaning it "cannot be touched". Software is also sometimes used in a more narrow sense, meaning application software only. Sometimes the term includes data that has not traditionally been associated with computers, such as film, tapes, and records. Examples of computer software includes: Middle ware, Programming Language, System software, test ware, firmware, devices drivers, and programming tools.



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