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What defines the number and type of daemons that are loaded into memory and executed by the kernel on a particular system?
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What part of the dos command structure is responsible for loading msdossys during a dos boot?
MSDOS.SYS is the kernel file so it gets executed as the system boots. It is related to kernel..
What is the name of kernel in Unix Linux and Windows Vista?
As Unix isn't any particular operating system, there is no distinct name for the kernel. Different versions of Unix may have vastly different kernel structures. The Linux kernel is called, well, the Linux kernel. The Vista kernel is a continuation of the "NT kernel" designed for Windows NT 3.1.
What is the library name in which the semaphore.h header file is present in Linux?
semaphore.h is in the kernel source. If you're looking for it for your particular distribution (such as for compiling modules), look in the kernel source package or install the kernel headers.
What is macro kernel?
Monolithic Kernel is also known as "Macro Kernel" A monolithic kernel (Macro Kernel) is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode. The monolithic differs from other operating system architectures (such as the microkernel architecture) in that it defines alone a high-level virtual interface over computer hardware, with a set of primitives or system calls to implement all operating system services such as process management, concurrency, and memory management itself and one or more device drivers as modules.
Are commands other than shell built-in executed in kernel?
No. All commands are executed in userspace. If the command is not built-in to the shell, it will look in a binary directory (/sbin, /bin, /usr/bin, or /usr/local/bin) for a program matching that name.
What are the process of accounting in business?
Accounting Process is the method of recording and summarizing commands executed on Linux. The modern Linux kernel is capable of keeping process accounting records for the commands being run, the user who executed the command, the CPU time, and much more.
What is a booststrap program?
A bootstrap program is the small program that is executed by the BIOS when the computer powers on. All it does is find the kernel for an OS and loads it into memory, thereby starting the computer's operating system.
What are user level threads?
•No special support needed from the kernel (use any Unix) •Thread creation and context switch are fast (no syscall) •Defines its own thread model and scheduling policies
What is the Linux boot process?
The Linux boot process can be divided into six steps which are as follows: # Kernel loader loading, setup, and execution: In this step, the bootsect.s file is loaded into the memory by the BIOS. When the bootsect.s file sets up, it loads the rest of the kernel into the memory. # Parameter setup and switch to 32-bit mode: When the kernel has been loaded, the boot.s file sets up a temporary IDT and GDT and handles the switch to 32-bit mode. # Kernel decompression: The head.s file decompresses the kernel. # Kernel setup: After the kernel is decompressed, the real GDT and IDT are created by the head.s (second file). # Kernel and memory initialization (main.c): In this step, the kernel sets up all memory constraints and virtual memory is completely set up. # Init process creation (main.c): In the final step of booting, the init process is created, which switches a Linux computer to different run levels. Ref: http://www.ucertify.com/article/what-are-the-various-steps-of-the-linux-boot-process.html
What is Linux virtual kernel for?
The virtual kernel is a kernel that can be used in unbuntu guest. It is a very lean kernel, this helps in reducing overhead. It installs the server kernel via a new name.
What is the core of an operating system?
The Kernel
What kernel is Mac OS X based on?
Mac OS X is based on the XNU kernel, a microkernel Mach kernel with a BSD userland, which makes Mac OS X's kernel a hybrid-kernel.
