DeviceListener is an Objective-C example which demonstrates how to use the DiscRecording framework to listen for device plug and unplug events as well as media insertion events. Requirements: Mac OS X 10.2 and later Keywords: DiscRecording

操作系统，操作系统课后答案设计现代OS的主要目标是什么? 方便性，有效性，可扩充性和开放性. 2. OS的作用可表现为哪几个方面? a. OS作为用户与计算机硬件系统之间的接口； b. OS作为计算机系统资源的管理者； c. OS实现了对计算机资源的抽象. 7. 实现分时系统的关键问题是什么?应如何解决?-Operating system, after-school answer to the design of modern operating system OS, the main obje