MVME172PA-644SE  Motorola 单板计算机 被制作为演示或开发系统

MVME172PA-644SE是MOTOROLA公司生产的一款VME总线工业级单板计算机。

MVME172PA-644SE采用PowerPC处理器，具有较高的性能和可靠性，常用于国防和航空航天、工业自动化和医疗成像等领域。它支持VME总线标准，具有丰富的外设接口，包括串口、并口、网口等，同时具有较高的可扩展性，方便进行功能扩展和升级。

在计算机中，存储器的主要作用是存储程序和各种数据信息，并能在计算机运行过程中高速、自动地完成程序或数据的存取。

MVME172PA-644SE计算机的存储器通常包括内存储器和外存储器。内存储器直接与运算器、控制器交换信息，容量体积小，存取速度快，一般只存放那些正在运行的程序和待处理的数据。而外存储器通常以硬盘等形式表现而存在，作为内存储器的延伸，用来存放一些系统必须使用，但又不急于使用的程序和数据，这些程序和数据必须调入内存才能够执行。MVME172PA-644SE外存储器通常读取数据较慢，但容量大，可以长时间保存大量信息。

单板计算机（Single-board Computer，SBC）是一种构建在单个电路板上的完整计算机，具有微处理器、存储器、输入/输出（I/O）以及其他功能计算机所需的其他功能。

MVME172PA-644SE单板计算机被制作为演示或开发系统，用于教育系统或用作嵌入式计算机控制器。许多类型的家用计算机或便携式计算机将其所有功能集成到单个印刷电路板上。与台式个人计算机不同，单板计算机通常不依赖于扩展插槽来实现外围功能或扩展。MVME172PA-644SE单板计算机使用各种微处理器构建。简单的设计，例如由计算机爱好者构建的设计，通常使用静态 RAM 和低成本的 8 或 16 位处理器。其他类型（例如刀片服务器）的性能与服务器计算机类似，只是采用更紧凑的格式。

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MVME172PA-644SE  Motorola 单板计算机 被制作为演示或开发系统

The MVME172PA-644SE is a VME bus industrial single-board computer produced by MOTOROLA.

The MVME172PA-644SE features a PowerPC processor with high performance and reliability and is commonly used in defense and aerospace, industrial automation and medical imaging. It supports the VME bus standard, has a wealth of peripheral interfaces, including serial port, parallel port, network port, etc., and has high scalability, convenient for function expansion and upgrade.

In the computer, the main role of memory is to store programs and various data information, and can complete the access of programs or data at high speed and automatically during the operation of the computer.

MVME172PA-644SE The memory of a computer usually includes internal memory and external memory. The internal memory directly exchanges information with the arithmetic device and the controller, the capacity is small, the access speed is fast, and generally only stores those programs that are running and the data to be processed. The external memory usually exists in the form of hard disk, as an extension of the internal memory, to store some programs and data that the system must use, but is not eager to use, and these programs and data must be transferred into memory to be able to execute. The MVME172PA-644SE external memory is usually slow to read data, but has a large capacity and can store a lot of information for a long time.

A single-board Computer (SBC) is a complete computer built on a Single circuit board with a microprocessor, memory, input/output (I/O), and other features required for a functional computer.

The MVME172PA-644SE single-board computer is manufactured as a demonstration or development system for use in educational systems or as an embedded computer controller. Many types of home computers or portable computers integrate all of their functions onto a single printed circuit board. Unlike desktop personal computers, single-board computers generally do not rely on expansion slots for peripheral functionality or expansion. The MVME172PA-644SE single-board computer is built using a variety of microprocessors. Simple designs, such as those built by computer enthusiasts, typically use static RAM and low-cost 8 - or 16-bit processors. Other types, such as blade servers, perform similarly to server computers, but in a more compact format.

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