Simple key combinations exist for window switching, groupswitching, frame control and screen switching.
简单的按键组合来实现组切换，框架控制，屏幕切换。
2
Group Similar tasks Back-to-Back - Switching gears between different types of tasks can be tough.
把类似的工作归类排列起来。在不同性质的工作之间转换比较不易。
3
Huffman suggests grouping similar processes together on the same machine or group of machines to avoid context switching all the time which consumes resources.