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The operating system provides an interface between an application program and the computer hardware, so that an application program can interact with the hardware only by obeying rules and procedures programmed into the operating system. The operating system is also a set of services which simplify development and execution of application programs.
Modern Operating Systems is a book written by Andrew Tanenbaum, a version (which does not target implementation) of his book Operating Systems: Design and Implementation. It is now in its 5th edition, published October 2022 ( ISBN 9780137618880 ), written together with Herbert Bos .
The classic Mac OS [a] (System Software) is the series of operating systems developed for the Macintosh family of personal computers by Apple Inc. from 1984 to 2001, starting with System 1 and ending with Mac OS 9. The Macintosh operating system is credited with having popularized the graphical user interface concept. [32]
daemon: Operating systems often start daemons at boot time and serve the function of responding to network requests, hardware activity, or other programs by performing some task. Daemons can also configure hardware (like udevd on some Linux systems), run scheduled tasks (like cron ), and perform a variety of other tasks.
In many modern operating systems, processes can consist of many sub-processes. This introduces the concept of a thread. A thread may be viewed as a sub-process; that is, a separate, independent sequence of execution within the code of one process.
Operating Systems: Design and Implementation is a computer science textbook written by Andrew S. Tanenbaum, with help from Albert S. Woodhull.The book describes the principles of operating systems and demonstrates their application in the source code of Tanenbaum's MINIX, a free Unix-like operating system designed for teaching purposes. [2]