20 June 2011

Open source software, hardware & software.

Open source software is computer software that is available in source code form, the source code and certain other rights normally reserved for copyright holders are provided under a software license that permits users to study, change, improve and at times also to distribute the software. Some open source software is available within the public domain. Open source software is very often developed in a public, collaborative manner. Open-source software is the most prominent example of open-source development and often compared to user-generated content or open content movements.

Hardware is a general term for the physical artifacts of a technology. It mean the physical  devices or physical components of a computer system, in the form of computer hardware. Hardware of a modern personal computer are monitor, motherboard, CPU, RAM, expansion cards, power supply, optical disc drive, hard disk drive, keyboard and mouse.

Software is a collection of computer programs and related data that provide the instructions telling a computer what to do and how to do it. We can also say software refers to one or more computer programs and data held in the storage of the computer for some purposes. In other words software is a set of programs, procedures, algorithms and its documentation. Program software performs the function program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software. Software is intangible, meaning it "cannot be touched". Software is also sometimes used in a more narrow sense, meaning application software only.

 References :

1. http://en.wikipedia.org/wiki/Open-source_software
2. http://en.wikipedia.org/wiki/Computer_software
3. http://en.wikipedia.org/wiki/Hardware
4. http://en.wikipedia.org/wiki/Personal_computer_hardware


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