A standard for defining codes for information exchange between equipment produced by different manufacturers. 美国信息互换标准代码一种在不同厂家生产的设备之间为信息交换而定义编码的标准
In systems with time sharing, an exchange between a terminal and another device that accomplishes a particular action or result; for example, the entry of a customer's deposit and the updating of the customer's balance. 在分时系统中，终端和其它设备进行一次数据交换，从而完成一个特定的动作或产生一个特定的结果。例如，输入客户的存款金额并修改客户的余额。
What is the rate of exchange between the dollar and the pound? 美元和英镑之间的兑换率是多少?
