What (who) is kernel space - definition
SOFTWARE RUN UNDER A KERNEL
Userland (computing); Userspace; User mode; Kernel space; User-space; Userspace driver; User-level; Kernelspace; Kernel-space; User space
User space and kernel space
A modern computer operating system usually segregates virtual memory into user space and kernel space. Primarily, this separation serves to provide memory protection and hardware protection from malicious or errant software behaviour.
Reproducing kernel Hilbert space
IN FUNCTIONAL ANALYSIS, A HILBERT SPACE
Reproducing kernel; Reproducing-kernel Hilbert space; Bergman spaces; Bergman kernel function; RKHS; Reproducing kernel Hilbert spaces; Moore–Aronszajn theorem; Moore-Aronszajn theorem
In functional analysis (a branch of mathematics), a reproducing kernel Hilbert space (RKHS) is a Hilbert space of functions in which point evaluation is a continuous linear functional. Roughly speaking, this means that if two functions f and g in the RKHS are close in norm, i.
Kernel (operating system)
![The [[hybrid kernel]] approach combines the speed and simpler design of a monolithic kernel with the modularity and execution safety of a microkernel](https://commons.wikimedia.org/wiki/Special:FilePath/Kernel-hybrid.svg?width=200 "The [[hybrid kernel]] approach combines the speed and simpler design of a monolithic kernel with the modularity and execution safety of a microkernel")
![servers]], separate programs that assume former kernel functions, such as device drivers, GUI servers, etc.](https://commons.wikimedia.org/wiki/Special:FilePath/Kernel-microkernel.svg?width=200 "servers]], separate programs that assume former kernel functions, such as device drivers, GUI servers, etc.")
![A diagram of the predecessor/successor family relationship for [[Unix-like]] systems](https://commons.wikimedia.org/wiki/Special:FilePath/Unix history-simple.svg?width=200 "A diagram of the predecessor/successor family relationship for [[Unix-like]] systems")
MAIN COMPONENT OF MOST COMPUTER OPERATING SYSTEMS
Operating system/kernel; Hybrid monolithic kernel; Operating system kernel; Kernel image; No-kernel; No kernell; No kernel; Kernel (computer); Kernel computer science; Kernel (computer science); Kernel (Computer Science); OS kernel; Kernel memory; Operating system kernels; Kernel design; Nucleus (operating system)
The kernel is a computer program at the core of a computer's operating system and generally has complete control over everything in the system. It is the portion of the operating system code that is always resident in memory and facilitates interactions between hardware and software components.
Wikipedia
User space and kernel space
A modern computer operating system usually segregates virtual memory into user space and kernel space. Primarily, this separation serves to provide memory protection and hardware protection from malicious or errant software behaviour.
Kernel space is strictly reserved for running a privileged operating system kernel, kernel extensions, and most device drivers. In contrast, user space is the memory area where application software and some drivers execute.
