
Keys
| Item | Component | Description | 
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| (1) | esc key | Displays system information when pressed in combination | 
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 | with the fn key. | 
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| (2) | fn key | Displays system information when pressed in combination | 
| 
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 | with the esc key. | 
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| (3) | Windows logo key | Displays the Windows Start menu. | 
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| (4) | Windows applications key | Displays a shortcut menu for items beneath the pointer. | 
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| (5) | Action keys | Execute frequently used system functions. | 
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| 8 | Chapter 2 External component identification |