系统 图 标盒 — 请参阅通 知区域

显示 器 — 一种类似电视的高分辨率设备,用于显示计算机输出。

像 素 — 显示屏屏幕上的一个点。像素按行和列排列以生成图像。视频分辨率表示为横向像素数乘以纵向像素数,例如 800 x 600。

写保护 — 不能更改的文件或介质。要保护数据免受更改或破坏时,请使用写保护。要对 3.5 英寸软盘设置写保护,请将其写保护挡片滑至打开位置。

休 眠 模 式 — 一种电源管理模式,能够将内存中的所有数据保存至硬盘驱动器上的保留空间,然后关闭计算机。重新启动计算机时,保存在硬盘驱动器上的内存信息将会自动恢复。

Y

移动模块 — 一种塑料设备,旨在放入便携式计算机的模块托架以减轻计算机的重量。

引导 盘 — 用于启动计算机的磁盘。请确保始终备有可用的可引导 CD 或软盘,以便在硬盘驱动器损坏或计算机感染病毒时使用。 引导 顺序 — 指定计算机尝试引导设备的顺序。

硬盘 驱 动器 — 能够读写硬盘上数据的驱动器。术语硬盘驱动器和硬盘一般可以互换使用。

— 网络中的一组计算机、程序和设备,由一组特定用户按照公用原则和过程将其作为一个单位进行管理和使用。用户登录至域可以获得对资源的访问权限。

Z

只读 — 只能查看、不能编辑或删除的数据和/或文件。文件在下列情况时为只读状态:

¡驻留在物理写保护的软盘、CD 或 DVD 上。

¡位于网络目录中,系统管理员只给个别人分配了权限。

智 能卡 — 一种嵌入了处理器和内存芯片的插卡。智能卡可用于验证配备了智能卡的计算机上的用户。

字节 — 计算机使用的基本数据单位。1 字节通常等于 8 位。

自 述 文 件 — 软件包或硬件产品附带的文本文件。通常,自述文件提供软件的安装信息,介绍尚未公开的新产品增强功能或修正。 总 线 — 计算机各组件之间的通信路径。

总 线速 率 — 表示总线传输信息的速率,以 MHz 为单位。 组合键 — 要求您同时按多个键的命令。

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Image 109
Dell 490 manual 系统 图 标盒 请参阅通 知区域。

490 specifications

The Dell PowerEdge 490 is a versatile and robust server designed to meet the demands of small to medium-sized enterprises. This server combines powerful performance with advanced features, making it suitable for various applications, from data storage to running critical applications.

One of the standout features of the Dell 490 is its support for dual Intel Xeon processors. The Xeon architecture provides exceptional processing power, enabling the server to handle complex tasks and multiple workloads simultaneously. This dual-processor capability is essential for businesses that require high availability and performance in their server operations.

The PowerEdge 490 supports up to 32 GB of DDR2 SDRAM, allowing for efficient multitasking and improved data access speed. The server's memory capacity ensures that it can support applications that require substantial RAM, which is increasingly important in today's data-driven environments.

Storage options are another highlight of the Dell 490. It features multiple drive bays that can support SAS, SATA, or SCSI hard drives, allowing businesses to customize their storage solutions based on their specific needs. The server supports a variety of RAID configurations, including RAID 0, 1, 5, and 10, providing options for data redundancy and performance optimization.

In terms of connectivity, the Dell PowerEdge 490 is equipped with several PCI Express slots, enabling the addition of various expansion cards for enhanced functionality. Whether it’s improved networking capabilities or graphics processing, the options for customization are plentiful. This adaptability ensures that the server can evolve alongside the organization’s growing needs.

The Dell 490 also incorporates advanced energy-efficient technologies, such as power management features designed to optimize energy consumption. This not only reduces operational costs but also makes it a more environmentally friendly option for businesses concerned about their carbon footprint.

In summary, the Dell PowerEdge 490 is a reliable server that boasts a combination of powerful processing capabilities, flexible storage options, and expandability. With its energy-efficient design and robust features, it remains an excellent choice for businesses looking to enhance their IT infrastructure while ensuring performance and adaptability for the future.