kernel execution level
11Thread (computer science) — This article is about the concurrency concept. For the multithreading in hardware, see Multithreading (computer architecture). For the form of code consisting entirely of subroutine calls, see Threaded code. For other uses, see Thread… …
12Operating system — Operating systems …
13Distributed operating system — A distributed operating system is the logical aggregation of operating system software over a collection of independent, networked, communicating, and spatially disseminated computational nodes.[1] Individual system nodes each hold a discrete… …
14Security and safety features new to Windows Vista — There are a number of security and safety features new to Windows Vista, most of which are not available in any prior Microsoft Windows operating system release.Beginning in early 2002 with Microsoft s announcement of their Trustworthy Computing… …
15Process management (computing) — Operating systems …
16NX bit — The NX bit, which stands for No eXecute, is a technology used in CPUs to segregate areas of memory for use by either storage of processor instructions (or code) or for storage of data, a feature normally only found in Harvard architecture… …
17Virtual machine — A virtual machine (VM) is a completely isolated guest operating system installation within a normal host operating system .[1] Modern virtual machines are implemented with either software emulation or hardware virtualization or (in the most… …
18Device driver synthesis and verification — The device driver is a program which allows the software or higher level computer programs to interact with a hardware device. These software components act as a link between the devices and the operating systems, communicating with each of these …
19Microkernel — Structure of monolithic and microkernel based operating systems, respectively In computer science, a microkernel is the near minimum amount of software that can provide the mechanisms needed to implement an operating system (OS). These mechanisms …
20Timeline of virtualization development — Timelines Note: This timeline is missing data for important historical systems, including: Atlas Computer (Manchester), GE 645, Burroughs B5000* 1964 ** IBM Cambridge Scientific Center begins development of CP 40. * 1965 ** IBM M44/44X,… …
