During the computer processing of gi, it is capacity consumed to describe these curves truly, and the data exchanging between internal and external memory may be time consumed.
在地理信息的计算机处理过程中，若要真实描述这类曲线将非常消耗存贮容量，也极大地加重内外交换的负担。
The control system of family computer embroider machine mostly adopts a single slice microprocessor, expanding to save more pattern data through external system memory.
家用电脑绣花机的控制系统大多是采用单片微处理器，通过系统内存扩展来存储更多的花样数据。
Internal memory: According to its position in a computer, memory can be divided into internal memory and external memory.
内部存储器：根据存储器在计算机中所处的不同位置，可分为内存和外存。
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