Chapter 3 Summary

By Shakir Ahmed

A Software is a program which runs on your computer and can be classified as system software's and applications. A system software consists of operating systems, device drivers, firmware, interfaces etc. a writing software is a software written using programming language. There are many different programming languages and they are sent in patterns called machine code. Machine is a low-level language which means it works at hardware level. Operating systems control the hardware and provide an interface for humans and applications. Applications do the real-world jobs that we require such as browsing the internet, typing up word documents etc.Proprietary software or closed source software is computer software licensed under exclusive legal right of the copyright holder with the intent that the license is given the right to use the software only under certain conditions, and restricted from other uses, such as modification, sharing, studying, redistribution, or reverse engineering. Usually the source code of proprietary software is not made available. Open-source software is computer software with its source code made available and licensed with a license in which the copyright holder provides the rights to study, change and distribute the software to anyone.

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