摘要： 3.3 Original version of Apple's mobile iOS operating system provied no means of concurrent processing. Discuss three major complications that concurrent processing adds to an operating system.答案：此问题不太熟悉， 应该是问向操作系统中加入并发处理后的三个主要并发症是什么。 在网上搜索了一下， 得到了一个答案。 1. The OS has to keep track of the main mem 阅读全文