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A real-time operating system (RTOS) is an operating system intended for applications with fixed deadlines ( real-time computing ). Such applications include some small embedded systems, automobile engine controllers, industrial robots, spacecraft, industrial control, and some large-scale computing systems.
Notes ^ However, the run-time environment for a language processor may subdivide the memory dynamically acquired from the operating system, e.g., to implement a stack. ^ In some operating systems, e.g., OS/360 , the free storage may be subdivided in various ways, e.g., subpools in OS/360 , below the line, above the line and above the bar in z/OS .
In operating systems, memory management is the function responsible for managing the computer's primary memory. [1] : 105–208. The memory management function keeps track of the status of each memory location, either allocated or free. It determines how memory is allocated among competing processes, deciding which gets memory, when they ...
Memory paging. In computer operating systems, memory paging (or swapping on some Unix-like systems) is a memory management scheme by which a computer stores and retrieves data from secondary storage [a] for use in main memory. [citation needed] In this scheme, the operating system retrieves data from secondary storage in same-size blocks called ...
A Linux-based system is a modular Unix-like operating system, deriving much of its basic design from principles established in Unix during the 1970s and 1980s. Such a system uses a monolithic kernel, the Linux kernel, which handles process control, networking, access to the peripherals, and file systems.
0-13-142938-8. 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 ...
Monolithic kernel. A monolithic kernel is an operating system architecture where the entire operating system is working in kernel space. The monolithic model differs from other operating system architectures (such as the microkernel architecture) [1] [2] in that it alone defines a high-level virtual interface over computer hardware.
Business Operating System (BOS) – developed to be ported across microcomputers. EOS – developed by ETA Systems for use in their ETA-10 line of supercomputers. EMBOS – developed by Elxsi for use on their mini-supercomputers. GCOS – a proprietary operating system originally developed by General Electric.