kernel


Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Idioms, Wikipedia.
Related to kernel: Linux kernel, Military ranks

kernel

1. the edible central part of a seed, nut, or fruit within the shell or stone
2. the grain of a cereal, esp wheat, consisting of the seed in a hard husk

Kernel

 

in mathematics, a function K(x, y) that defines the integral transformation

which transforms the function f(y) into the function ɸ(x). The theory of such transformations is connected with the theory of linear integral equations.

kernel

[′kərn·əl]
(atomic physics)
An atom that has been stripped of its valence electrons, or a positively charged nucleus lacking the outermost orbital electrons.
(botany)
The inner portion of a seed.
A whole grain or seed of a cereal plant, such as corn or barley.
(computer science)
A computer program that must be modified before it can be used on a particular computer.
The programs that form the most essential part of a computer's operating system.
(mathematics)
For any mapping ƒ from a group A to a group B, the kernel of ƒ, denoted ker ƒ, is the set of all elements a of A such that ƒ(a) equals the identity element of B.
For a homomorphism h from a group G to a group H, this consists of all elements of G which h sends to the identity element of H.
For Fredholm and Volterra integral equations, this is the function K (x, t).
For an integral transform, the function K (x, t) in the transformation which sends the function ƒ(x) to the function ∫ K (x,t)ƒ(t) dt = F (x).

kernel

(Note: NOT "kernal").

1. <operating system> The essential part of Unix or other operating systems, responsible for resource allocation, low-level hardware interfaces, security etc. See also microkernel.

2. <language> An essential subset of a programming language, in terms of which other constructs are (or could be) defined. Also known as a core language.

kernel

The nucleus of an operating system. It is the closest part to the machine level and may activate the hardware directly or interface to another software layer that drives the hardware. The kernel orchestrates the entire operation of the computer by slicing time for each system function and each application as well as managing all the computer's resources. It typically resides in memory at all times. See microkernel, monolithic kernel, kernel space and kernel panic.
References in classic literature ?
He was dressed in clothes far to large for him, clothes of the doctor's bigness; the cords of his face still moved with a semblance of life, but life was quite gone: and by the crushed phial in the hand and the strong smell of kernels that hung upon the air, Utterson knew that he was looking on the body of a self-destroyer.
Friquet had put on his Sunday clothes, under the pretext of having a swollen face which he had managed to simulate by introducing a handful of cherry kernels into one side of his mouth, and had procured a whole holiday from Bazin.
One of these is a giant Indian maize--a lofty perennial often fifty and sixty feet in height, with ears the size off a man's body and kernels as large as your fist.
I remember vaguely the eating of many green nuts, with soft shells and milky kernels.
2 kernel dumps are crucial for locating specific functions within the kernel that are static between iOS 6.
2] proposed the word-sequence kernel which extends the string kernel to process documents as word sequences.
The latest version of the Linux kernel was supposed to have been released about a week ago but at the time another release candidate was needed to fix issues related to networking, memory management and drivers.
Aflatoxin levels of the kernel were determined using a method described by Pons [16].
Kernel Season's Popcorn Spritzer is an all-natural, butter-flavored, zero calorie/zero fat spray-on popcorn seasoning that is made with a blend of canola, sunflower and corn oils and gives popcorn the taste of buttered movie theater popcorn.
Kernel Season's, the number one popcorn seasoning brand in America, announced today that Blockbuster Inc.
X-ray-diffraction analysis showed that heating a kernel causes the long cellulose molecules to align and assume a highly ordered crystalline structure.
6 kernel, LynuxWorks is enabling developers to take advantage of advanced features such as real-time performance and easier porting to new computers.