SECTION 1
Lesson 1.1: Maintaining Your Computer

   

 

 

The Task Manager provides you with dynamic information about your computer’s performance and also displays details about programs and processes running on your computer. It also displays network information. Task Manager is also capable of ending and starting programs, which is especially useful when you have a frozen or hung program. The status bar of this window also displays the number of running processes, the CPU usage percentage, and the Commit Charge of your memory.

 

 

To open task manager, right Click on the taskbar and select Task Manager, or use the keyboard shortcut Ctrl+Alt+Del.

 

 

We will first begin by looking at the menus available in Task Manager.

  • File
  • Options
  • View
  • Windows
  • Shut Down
  • Help

 

File

New Task (Run…): Opens the Run box (also available in the Start Menu).

 

Exit Task Manager

Options

Always On Top: Toggles the option to keep the Task Manager window on top of all other windows.

 

Minimize On Use: Toggles the option to minimize the Task Manager when an application is opened from the Applications tab.

 

Hide When Minimized: Toggles the option to hide the Task Manager to the notification area/system tray when minimized.

View

Refresh Now: Refreshes the window.

 

Update Speed: Provides update options for High, Normal, Low, and Paused. (This is in relation to the Performance Tab.)

 

Large icons: Displays a large icon view under the Applications tab.

 

Small icons: Displays a small icon view under the Applications tab.

 

Details: Displays a detailed icon view under the Applications tab.

Windows

Tile Horizontally: Tiles the active window(s) horizontally. (The active windows are those which are selected under the Applications tab.)

 

Tile Vertically: Tiles the active window(s) horizontally.

 

Minimize: Minimizes the active window(s).

 

Maximize: Maximizes the active window(s).

 

Cascade: Cascade the active window(s).

 

Bring To Front: Brings the active window to the front of all other windows.

Shut Down

Stand By: Enters the computer into a Stand By state, where devices are powered off, allowing your computer to ender a low-power state. (This state is useful for laptops which need to conserve battery power.)

 

Hibernate: Enters the computer into a hibernation state, where your current state is saved to the hard disk so the computer can power off. When you restart your computer, your desktop is restored exactly as you left it.

 

Turn Off: Turns off the computer.

 

Restart: Restarts the computer.

 

Log Off: Logs off the current user.

 

Switch User: Allows you to switch to another user. (Keeps the current user logged on.)

Help

Task Manager Help Topics: Opens the Task Manager help window.

 

About Task Manager: Provides technical information about task manager.

 

 

Next, let’s look at the different tabs available in device manager. The available tabs are:

  • Applications
  • Processes
  • Performance
  • Networking
  • Users

 

The Applications tab provides a list of your currently opened applications and their status. It also provides button options for End Task, Switch To, and New Task.

 

 

The Processes tab provides a list of currently running processes from your computer though a column list display. Other column menus can additionally be added to this window through the view menu.

 

 

The performance tab displays dynamic information regarding your CPU(s), Page File usage, and other resources. The first graph is your CPU graph which shows you a dynamic graph displaying your CPU usage. Below this is a Page File Usage graph. Below the main graphs are the sections for Totals, Commit Charge (K), Physical Memory (K), and Kernel Memory (K). Let’s explain these resources in further detail.

 

Section

Sub-Sections

Totals

Handles: Handles are sometimes referred to as pointers, enabling a program to access a resource, such as a library function.

 

Threads: A thread is usually a part of a program that can function and execute independently of other threads. A program can have one or many threads.

 

Processes: The number of running processes on the computer. These are listed in detail under the Processes tab.

Commit Charge (K)

Total: This is the total amount of memory in use by all applications, including memory that has been temporarily paged to disk.

 

Limit: This is the limit of the memory in use by all applications and other memory resources.

 

Peak: This is the peak amount of memory used by all applications and other memory resources.

Physical Memory (K)

Total: This is the total physical amount of memory installed in your computer.

 

Available: This is the available amount of memory available in your computer.

 

System Cache: This is the amount of memory being used as a disk cache.

 

Total: This is the total amount of kernel memory, reserved for open processes.

 

Paged: This is the amount of kernel memory which has been paged. This is usually a process done between the hard drive and memory.

 

Nonpaged: This is the amount of kernel memory which has not been paged.

 

 

The networking tab displays a dynamic graph for each operational network connection. It also displays each network connection with more information based on your desired column selection.

 

 

The Users tab displays the currently logged on users and more information based on the desired column selection.