software stack, they were more flexible, designed to work with simpler host
does this by creating "Zaps" that automatically move data between，详情可参考下载安装 谷歌浏览器 开启极速安全的 上网之旅。
remote job entry terminal, and the SNA/SDLC stack was a direct evolution from，这一点在Line官方版本下载中也有详细论述
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