kernel

简明释义

英[ˈkɜːn(ə)l]美[ˈkɜːrnl]

n. （坚果可食用的）仁，核；玉米粒；（陈述、观点、计划等的）核心，要点；（某物的）极小一部分，微量；（计算机操作系统的）核心程序；（语言学）核心句

复 数 k e r n e l s

第 三 人 称 单 数 k e r n e l s

现 在 分 词 k e r n e l l i n g 或 k e r n e l i n g

过 去 式 k e r n e l l e d 或 k e r n e l e d

过 去 分 词 k e r n e l l e d 或 k e r n e l e d

英英释义

单词用法

同义词

反义词

例句

1.Loadable kernel module; no recompilation of the kernel is required.

可装载内核模块；无需重编译内核。

2.However, some knowledge of kernel programming is required.

不过，还是需要一些内核编程的知识。

3.Our traditional product, waxberry is sold well in the international market with the sweet and small kernel.

我们的传统产品杨梅果仁小而甜，畅销国际市场。

4.Now, let's configure our new kernel.

现在，让我们配置自己的新内核。

5.For all I know, there may be a kernel of truth in what he says.

据我所知，他的话可能有一点儿道理。

6.Your new kernel should be on that list.

您的新内核应该会显示在那个列表中。

7.These become the kernel business process.

这些将成为核心的业务流程。

8.The kernel of the operating system is responsible for managing hardware resources.

操作系统的内核负责管理硬件资源。

9.In machine learning, the kernel function helps to transform data into a higher dimension.

在机器学习中，核函数有助于将数据转换为更高维度。

10.A kernel is the core part of any software that facilitates communication between hardware and software.

内核是任何软件的核心部分，促进硬件与软件之间的通信。

11.The kernel panic occurred due to a critical error in the system.

由于系统中的关键错误，发生了内核崩溃。

12.The kernel of corn is often used in various culinary dishes.

玉米的粒常用于各种烹饪菜肴中。

作文

In the realm of computer science, the term kernel refers to the core component of an operating system. It acts as a bridge between applications and the actual data processing done at the hardware level. The kernel is responsible for managing system resources such as the CPU, memory, and peripheral devices. Without a properly functioning kernel, the entire operating system would fail to operate efficiently. The kernel can be thought of as the heart of the operating system, much like how the human heart pumps blood to keep the body alive. When we run applications on our computers or smartphones, it is the kernel that ensures these applications have the necessary resources to function. For instance, when you open a word processor, the kernel allocates memory space for the application and manages its access to the CPU. There are different types of kernels, including monolithic kernels, microkernels, and hybrid kernels. A monolithic kernel contains all the essential services in one large block of code, which can lead to efficiency but also makes the system more complex. In contrast, a microkernel aims to run as few services as possible in the kernel space, delegating most functions to user space, which can enhance stability and security but may introduce performance overhead. The importance of the kernel extends beyond just resource management; it also plays a crucial role in system security. The kernel enforces access controls and permissions, ensuring that unauthorized users cannot access sensitive information or system resources. This is particularly important in multi-user systems where different users may have varying levels of access. Understanding the kernel is essential for anyone interested in computer science or IT. It lays the foundation for understanding how operating systems function and how applications interact with hardware. Moreover, knowledge of the kernel can help developers optimize their applications for better performance and security. In summary, the kernel is a fundamental part of any operating system, acting as the intermediary between software and hardware. Its role in resource management, security, and system functionality cannot be overstated. As technology continues to evolve, the kernel will remain a vital area of study for computer scientists and engineers alike. By grasping the concept of the kernel, one can gain deeper insights into the workings of modern computing systems, paving the way for advancements in software development and system architecture.

在计算机科学领域，术语kernel指的是操作系统的核心组件。它充当应用程序与实际数据处理之间的桥梁。kernel负责管理系统资源，例如CPU、内存和外部设备。如果kernel无法正常工作，整个操作系统将无法高效运行。 可以将kernel视为操作系统的心脏，就像人类的心脏泵送血液以维持身体的生命。当我们在计算机或智能手机上运行应用程序时，正是kernel确保这些应用程序拥有必要的资源来运行。例如，当您打开文字处理器时，kernel会为该应用程序分配内存空间并管理其对CPU的访问。 有不同类型的kernels，包括单体内核、微内核和混合内核。单体kernel将所有基本服务包含在一个大型代码块中，这可能导致效率高，但也使系统更加复杂。相反，微内核旨在尽可能少地在kernel空间中运行服务，将大多数功能委托给用户空间，这可以增强稳定性和安全性，但可能引入性能开销。 kernel的重要性不仅限于资源管理；它还在系统安全性中发挥着至关重要的作用。kernel强制执行访问控制和权限，确保未经授权的用户无法访问敏感信息或系统资源。这在多用户系统中尤为重要，因为不同用户可能具有不同级别的访问权限。 了解kernel对于任何对计算机科学或IT感兴趣的人来说都是必不可少的。它为理解操作系统如何运行以及应用程序如何与硬件交互打下了基础。此外，了解kernel可以帮助开发人员优化他们的应用程序，以获得更好的性能和安全性。 总之，kernel是任何操作系统的基本部分，充当软件与硬件之间的中介。它在资源管理、安全性和系统功能方面的作用不可低估。随着技术的不断发展，kernel将继续成为计算机科学家和工程师研究的关键领域。通过掌握kernel的概念，人们可以深入了解现代计算系统的运作，为软件开发和系统架构的进步铺平道路。