翻译成英语： 计算机网的出现，是由于个人电脑的产生。

计算机网的出现，是由于个人电脑的产生。
The appearence of computing network is due to the introduction of personal PC.

Although this is not true tho, network was developed long before computers became available to average families.

The appearence of computer network is due to the invention of PC.