Peripheral Equipment - Devices connected to a computer processor, which perform such auxiliary functions as communications, data storage, printing, etc.

连接到处理计算机，用以实现通讯、数据存储、打印等辅助功能的设备。

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During the hardware part, mention data acquisition, including sampling mode and equipment, simultaneously, introduce the communication between the peripheral equipment and PC.

在系统的硬件部分，主要谈到了数据的采集，包括采样原理以及采样设备，并对外部设备与PC机通信做了简单介绍。

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Now there are few commercial expanding-boards which can support data transmitting between memorizer and peripheral equipment in computer.

目前计算机少有支持存储器与外设之间DMA传送的商用扩展板。

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