新的计算机软件往往和旧式计算机不兼容。
New computer software is often incompatible with older computers.
这确保了用于卫星和地面站计算机中的程序执行要求的任务而不会产生错误，这些错误通常产生于不兼容的技术被共同使用的时候。
This ensures that programs used on the satellites and in the ground station computers execute required missions without errors that commonly occur when incompatible technologies are combined.
由于计算机的计算硬件和软件缺乏一个共同的标准，各个竞争对手的产品几乎不兼容，使得个人计算机的运作比大型计算机更为低效。
Due to a lack of standards in computing hardware and software, competing products were rarely compatible — making PC networks far more inefficient than their mainframe predecessors.
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