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A kernel is the core component of an operating system that manages the operations of the computer and hardware. It acts as a bridge between software applications and the hardware of a computer, ensuring smooth and efficient functioning. The kernel handles tasks such as running programs, accessing files, and connecting to devices like printers and keyboards12.
Types of Kernels
Monolithic Kernel
A monolithic kernel is where all operating system services operate in kernel space. It is efficient and has tight integration, but can be less stable and harder to maintain due to its complexity. Examples include Unix and Linux1.
Microkernel
A microkernel has a minimalist approach, running most services in user space. It is more stable and modular but can be slower due to more context switches. Examples include Mach and Minix1.
Hybrid Kernel
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See all on WikipediaKernel (operating system) - Wikipedia
A kernel is a computer program at the core of a computer's operating system that always has complete control over everything in the system. The kernel is also responsible for preventing and mitigating conflicts between different processes. It is the portion of the operating system code that is always … See more
Random-access memory (RAM) is used to store both program instructions and data. Typically, both need to be present in memory in order for a program to execute. Often multiple programs will want access to memory, … See more
I/O devices include, but are not limited to, peripherals such as keyboards, mice, disk drives, printers, USB devices, network adapters, and display devices. The kernel provides convenient methods for applications to use these devices which are typically … See more
The kernel has full access to the system's memory and must allow processes to safely access this memory as they require it. Often the first step in doing this is virtual addressing, usually achieved by paging and/or segmentation. Virtual addressing allows the kernel to … See more
In computing, a system call is how a process requests a service from an operating system's kernel that it does not normally have … See more
Key aspects necessary in resource management are defining the execution domain (address space) and the protection mechanism used to mediate access to the … See more
To perform useful functions, processes need access to the peripherals connected to the computer, which are controlled by the kernel through device drivers. A device driver is a computer program encapsulating, monitoring and controlling a hardware device … See more
Protection
An important consideration in the design of a kernel is the support it provides for protection from faults (fault tolerance) and from malicious behaviours (security). These two aspects are usually not clearly distinguished, and … See moreWikipedia text under CC-BY-SA license Kernel in Operating System - GeeksforGeeks
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- Monolithic Kernel – It is one of types of kernel where all operating system …
- Micro Kernel – It is kernel types which has minimalist approach. It has virtual …
- Hybrid Kernel – It is the combination of both monolithic kernel and …
- Exo Kernel – It is the type of kernel which follows end-to-end principle. It has …
- Nano Kernel – It is the type of kernel that offers hardware abstraction but …
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