logical address

简明释义

逻辑地址;

英英释义

例句

1.Each thread in a multi-threaded application has its own logical address 逻辑地址 space for data storage.

多线程应用程序中的每个线程都有自己的逻辑地址逻辑地址空间用于数据存储。

2.When programming in C, you often deal with logical addresses 逻辑地址 when using pointers.

在C语言编程中，使用指针时经常处理逻辑地址逻辑地址。

3.In a virtual memory system, each process is given a unique logical address 逻辑地址 space to prevent interference from other processes.

在虚拟内存系统中，每个进程被分配一个唯一的逻辑地址逻辑地址空间，以防止与其他进程的干扰。

4.In networking, a logical address 逻辑地址 refers to an IP address that identifies a device on a network.

在网络中，逻辑地址逻辑地址指的是标识网络上设备的IP地址。

5.The operating system translates the logical address 逻辑地址 into a physical address before accessing memory.

操作系统在访问内存之前将逻辑地址逻辑地址转换为物理地址。

作文

In the realm of computer science and networking, understanding the concept of a logical address is crucial for both hardware and software communication. A logical address refers to an abstraction used by the operating system to manage memory and facilitate data transfer between devices. Unlike physical addresses, which correspond directly to hardware locations, logical addresses allow for a more flexible and efficient approach to resource management.To put it simply, a logical address is a virtual address that is generated by the CPU during program execution. This address serves as a reference point for the operating system to access the necessary data stored in the system's memory. One of the main advantages of using logical addresses is that they enable programs to operate independently of the physical memory layout. This means that even if the physical memory changes, the program can still run smoothly without any modifications.For instance, consider a scenario where multiple applications are running on a computer simultaneously. Each application is assigned its own set of logical addresses, which helps prevent conflicts and ensures that each program operates within its designated memory space. The operating system employs a technique called 'memory mapping' to translate these logical addresses into physical addresses, allowing seamless access to the required data.Moreover, the use of logical addresses enhances security and stability within the system. By isolating applications from each other through their unique logical addresses, the operating system can prevent one application from interfering with another. This isolation is particularly important in multi-user environments, where different users may be running various applications at the same time.In addition to memory management, logical addresses play a vital role in networking. When data packets are sent over a network, each packet carries a logical address that signifies the destination of the data. This allows routers and switches to efficiently direct the packets to their intended recipients without needing to know the physical location of each device on the network. Thus, logical addresses facilitate communication between devices in a way that is both organized and efficient.Furthermore, the concept of logical addresses extends beyond just memory management and networking. It is also applicable in database systems, where records are accessed using logical addresses instead of physical storage locations. This abstraction allows for easier data manipulation and retrieval, making it possible to query databases without needing to understand the underlying physical structure.In conclusion, the significance of logical addresses in computer science cannot be overstated. They provide a framework for managing memory, enhancing security, and facilitating communication across networks. As technology continues to evolve, the importance of understanding logical addresses will only grow, making it a fundamental concept for anyone interested in the field of computing. By grasping the intricacies of logical addresses, individuals can better appreciate the complexities of modern computing systems and their operations.

在计算机科学和网络领域，理解“逻辑地址”的概念对硬件和软件通信至关重要。“逻辑地址”是操作系统用来管理内存和促进设备之间数据传输的抽象。与直接对应于硬件位置的物理地址不同，“逻辑地址”允许更灵活和高效的资源管理。简单来说，“逻辑地址”是由CPU在程序执行过程中生成的虚拟地址。这个地址作为操作系统访问存储在系统内存中的必要数据的参考点。使用“逻辑地址”的主要优点之一是，它们使程序能够独立于物理内存布局运行。这意味着即使物理内存发生变化，程序也可以顺利运行而无需任何修改。例如，考虑一个场景，其中多个应用程序同时在计算机上运行。每个应用程序都被分配一组独特的“逻辑地址”，这有助于防止冲突，并确保每个程序在其指定的内存空间内运行。操作系统采用名为“内存映射”的技术，将这些“逻辑地址”转换为物理地址，从而实现对所需数据的无缝访问。此外，使用“逻辑地址”增强了系统的安全性和稳定性。通过通过其唯一的“逻辑地址”将应用程序彼此隔离，操作系统可以防止一个应用程序干扰另一个应用程序。这种隔离在多用户环境中尤其重要，因为不同用户可能同时运行各种应用程序。除了内存管理外，“逻辑地址”在网络中也起着重要作用。当数据包通过网络发送时，每个数据包携带一个“逻辑地址”，表示数据的目的地。这使得路由器和交换机能够有效地将数据包定向到其预期的接收者，而无需了解网络上每个设备的物理位置。因此，“逻辑地址”以有组织和高效的方式促进设备之间的通信。此外，“逻辑地址”的概念不仅限于内存管理和网络。在数据库系统中，记录也是通过“逻辑地址”访问，而不是物理存储位置。这种抽象使得数据操作和检索更容易，使得查询数据库成为可能，而无需理解底层的物理结构。总之，“逻辑地址”在计算机科学中的重要性不容小觑。它们为管理内存、增强安全性和促进网络通信提供了框架。随着技术的不断发展，理解“逻辑地址”的重要性只会增加，使其成为任何对计算领域感兴趣的人的基本概念。通过掌握“逻辑地址”的复杂性，个人可以更好地欣赏现代计算系统及其操作的复杂性。