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What portion of operating system interacts directly with computer hardware?
HAL.dll in windowsThe Hardware Abstraction Layer Directs to The kernel I believe it's been a while since my last A+ exam
What is the kernel in an operating system?
The kernel is the core part of the operating system. The kernel handles the machine side of things, while the GUI handles the user side of things.
What is a kernel?
The central module of an operating system. It is the part of the operating system that loads first, and it remains in main memory. Because it stays in memory, it is important for the kernel to be as small as possible while still providing all the essential services required by other parts of the operating system and applications. Typically, the kernel is responsible for memory management, process and task management, and disk management. The definition of kernel is "the portion of an OS (Operating System) that is responsible for interacting with the hardware. It is the operating system software that runs in kernel mode on the computer's processor and which provides low-level intelligence for the operating system. In other words, the kernel is the "heart" of an operating system.
How is a memory-resident part of an operating system different from a nonresident part of an system?
Memory resident instructions are instructions that remain in the memory while the computer is running. Nonresident instructions remain on the storage medium until they are needed.
What is a backdoor computing system?
A backdoor computing system allows a user to gain illegal remote access to a computer by bypassing normal authentication. The user attempts to remain undetected while they obtain information on said computer.
What do you mean by kernel?
The word kernel comes from an onion. Where the innermost part of the onion is called a kernel. Similar analogy is applied here. The innermost crucial part of an operating system is called as the kernel, while the shell(bash) is the part which covers the kernel so as to hide its complexities.
What is the function of the Unix kernel?
The kernel is the essential center of a computer operating system, the core that provides basic services for all other parts of the operating system. A synonym is nucleus. A kernel can be contrasted with a shell, the outermost part of an operating system that interacts with user commands. Kernel and shell are terms used more frequently in Unix operating systems than in IBM mainframe or Microsoft Windows systems.Defnition from Wikipedia:In computer science, the kernel is the central component of most computer operating system(OS). Its responsibilities include managing the system's resources (the communication between hardware and software components). As a basic component of an operating system, a kernel provides the lowest-level abstraction layer for the resources (especially memory, processors and I/O devices) that application software must control to perform its function. It typically makes these facilities available to application programs through interprocess communication mechanisms and system calls.These tasks are done differently by different kernels, depending on their design and implementation. While monolithic kernels will try to achieve these goals by executing all the code in the same address space to increase the performance of the system, microkernels run most of their services in user space, aiming to improve maintainability and modularity of the codebase. A range of possibilities exists between these two extremes.
How is a memory-resident part of an operating system different from a nonresident part of an operating system?
A memory resident, which means it remains inmemory while the computer is running, other parts of the operating system are nonresident, meaning these instructions remain on a storage medium until they are needed.
What is the difference between a computer and an operating system?
a computer is a machine for performing caculations automatically while an operating system is a software that contrls the execution of a computer
What are Linux distubution flavors?
Linux is only a Kernel (Operating System). Different Flavours of linux have different user programs on top of the same linux kernel. A high level example : Ubuntu has the user program(package) GNOME while Kubuntu has KDE, whereas both ubuntu & Kubuntu use the same Linux Kernel.
What is an example of a Windows and a Linux operating system?
MicroSoft Windows - Windows 8 : Linux - Ubuntu 14.04 are two examples. Note: Linux is the name of the kernel, while Ubuntu is a distribution (distro) and is one of many Operating Systems available to Linux users for free.
What is the difference between microprocessor and computer?
a microprocessor is a small unit with memory inside the system unit while a computer is the combination of a monitor and a system unit
