And that can help you troubleshoot problems that may

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hardware devices attached to it, and has different applications installed on it, and so on. And that can help you troubleshoot problems that may occur. Task Manager 0:35-5:21 So the first tool we're going to look at is Task Manager. Task Manager is extremely useful formonitoring system performance. To start Task Manager, you come down to your task bar, right-click, and then click on Task Manager. Now the default view that you see here is practically useless. If you want to use Task Manager effectively, you need to come down here and first click on More details. Now we have data that we can actually work with. Now the processes tab opens by default. And here you can see a list of all the different processes running on the system, and they're categorized. Notice that we have a category for running apps. There's only one on the system right now, which is Task Manager itself. We have a category for background processes, and then we have a category for Windows processes. And as you can see, even though we only have one end user application running, there are 22 plus 24, there are 46 different background or Windows processes running in order to create the environment that we're working in. So, what we want to do if we're having problems withthe system is look at CPU utilization, memory utilization, disk utilization, and network utilization statistics for each of these processes. Now one of the things I like about Task Manager is the fact that you can click on each of these columnheads. And when you do, it will sort the processes based upon that particular parameter, either ascending or descending. Right now I have selected the CPU column and I'm sorting from most utilization to least utilization. Now you'll notice up here, that the overall utilization is at 5%. That's pretty good. The system has plenty of CPU capacity to support additional processes. But if this were spiked up around say 30 to 40 to 50 to 60%, then we'd probably have too much stuff running on the system. And by sorting, we can see which processes are using the most CPU time. And then you can make decisions such as should I unload that particular process, or do I need to add additional memory to the system to support it. We could also look at processes based upon how much memory they're using. I'll click on the Memory column heading, and we'll sort by the applications that are using the most system RAM. We can also see which processes are using the most disk I/O throughput by clicking on this column head. And again, this system's actually running pretty good. We're not experiencing any problems, but if we were, we were having slow disk performance for example, we could see which processes are writing or reading the most from the hard disk drive. And if we're experiencing sluggish network performance, then we click on the Network column, and see which processes are using the network the most. Now notice that on the processes tab, what we see are just raw numbers. If we need a visual representation of how CPU memory disk and network are being utilized on the system, we can actually go over here to the performance tab. On the performance tab, we can see. We can see a
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