Task Manager provides information about the programs and processes running on your computer and the performance of your computer. You can use Task Manager to start programs, to stop programs and processes, and to view a dynamic view of your computer's performance.
Task Manager allows you to monitor applications and processes currently running on your computer. It also provides information about the processes, including the memory usage of each one. It provides statistics about the memory and processor performance and network usage. You can start Task Manager in any of the following three ways:
The Task Manager dialog box shown in Figure 15.8 has four tabs: Applications, Processes, Performance, and Networking.
You can use the options in the Applications tab of the Task Manager dialog box to stop a program from running (End Task), to switch to a program and bring the program into the foreground (Switch To), and to start a program (New Task). At the bottom of the display, Task Manager shows you the number of processes currently running, the CPU usage, and the memory usage.
The Processes tab in the Task Manager dialog box (see Figure 15.9) lists all processes currently running on your computer that run in their own address space, including all applications and system services. Task Manager also allows you to end processes.
By default, the Processes tab shows you the processes, the users running each process, and the CPU and memory usage for each process that is running. You can add additional performance measures to those shown by default in the Processes tab. To add performance measures, on the View menu, click Select Columns (see Figure 15.9). Table 15.8 describes the columns that are displayed in Task Manager by default and some of the columns that can be added to the Processes tab.
Table 15.8??Processes Tab Columns
You can use the Performance tab in the Task Manager dialog box (see Figure 15.10) to see a dynamic overview of system performance.
Table 15.9 describes the fields that are displayed in Task Manager by default in the Performance tab.
Table 15.9??Performance Tab Fields
The Networking tab in the Task Manager dialog box lists the adapter name, the network utilization, the link speed, and the state of the connection.
In this practice, you use Task Manager to monitor programs, processes, and system performance. You use Task Manager to start a program and to stop a program. Finally, you add new columns to the Processes tab.
Run the TaskManager file in the Demos folder on the CD-ROM accompanying this book for a demonstration of using Task Manager.
What programs are currently running on your system?
Windows XP Professional displays a Create New Task dialog box.
WordPad should start and be listed as a running application.
How many processes are running?
The Select Columns dialog box appears.
Two new columns, Peak Memory Usage and Page Faults, are added to the Processes tab display. You might need to maximize Task Manager to see all columns.
What percentage of your CPU's capacity is being used?
Do you think that your CPU could be slowing down the performance on your system?
WordPad closes and is removed from the list of running applications.
The following questions will help you determine whether you have learned enough to move on to the next lesson. If you have difficulty answering these questions, review the material in this lesson before beginning the next lesson. The answers are in Appendix A, "Questions and Answers."