vmstat 工具输出线程/进程信息、内存/交换区使用率、换进/换出页面、磁盘 I/O、页面错误和 CPU 统计信息。
The vmstat tool outputs thread/process information, memory/swap usage, page ins/outs, disk I/O, page faults, and CPU statistics.
另一款新的配件是售价39美元的支持1080p的HDMI视频输出线，适用于所有的IPad应用程序，乔布斯说，而且连上电源以后还可以给IPad充电。
Another new accessory is a $39 HDMI video-out cable that's capable of 1080p video mirroring. The cable works with all iPad apps, Jobs said, and it'll charge your iPad when plugged into a power source.
为了得到所需要的64输出线以连接led的阳极，我们将创建一个简单的多路电路。
To get get the required 64 output lines needed for the LED anodes, we will create a simple multiplexer circuit.
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