1) To Delete a File –
Press Control and click on the file, you will get the menu for Move to Trash
2) Print Screen –
Press Apple Key ⌘ + shift + 3 and release all, print screen will be availabel on your Desktop
Press Apple key ⌘ + Shift + 4 and release all key, You will see the mouse cursor will change to + , You can start to drag your mouse to select the portion you wish to capture.
3) Alias (shortcut) –
Press Control and click on the file, Select Make Alias, Drag the file to desktop
4) Eject DVD/CD
Go to applications – > Utilities –> Disk Utilities –>select DVD/CD Disk and click Eject
5) Adding User
Choose Apple menu > System Preferences and click Accounts.
If some settings are dimmed, click the lock icon and type an administrator name and password.
Click Add (+) and type the user’s name.