How to Operate a MacBook

Turn on your MacBook. Press the power button with the computer plugged in. This is not a step you have to take very often. The MacBook has a low power 'sleep' mode that is much more convenient than switching the computer off. Just close the lid of the computer when you're finished using it, and open the lid when you want to use it again.
Explore the main screen---called the Desktop or Finder---of the MacBook. Notice the menu bar at the top of the screen; this bar will contain the menus for whatever program you are currently using. It also has controls and information for common tasks, such as a battery meter, a volume control and a wireless Internet control.
Explore the 'Dock' area along the bottom of your screen. The Dock contains frequently used and currently active programs. To use a program, simply click on its icon in the Dock. Try opening iCal, the Mac calendar program. Notice that the menus on the top of the screen change and the name iCal appears on the left side of the menu. To quit a program, click and hold on its icon in the Dock until the 'Quit' option appears.
Customize your computer. Click on the apple at the far left of the menu bar and select 'System Preferences.' This is where you change any system setting you like. Explore the various options inside System Preferences. Don't worry---you will have to enter your password before it allows you to make any serious changes.
Explore your home folder. Click on the blue smiley face on the left side of the Dock, and your home folder will appear in a new Finder window. From here, you can access your photos, movies, music and documents.
Explore the Applications folder. Your MacBook has many more applications than are shown on the Dock. To access them, open a new finder window (the blue smiley face), and click on the 'Applications' icon on the left side of the window. Double-click a program to start it, or if you prefer, drag the icon to the Dock to make it a permanent fixture there.
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How to Turn off the Screen Rotation Lock on the iPhone

Press the 'Home' button twice. The multitasking status bar opens at the bottom of the screen.
Flick the multitasking status bar to the right reveal the iPhone's iPod controls and the rotation lock. The rotation lock icon is located to the left of the iPod controls. A small lock symbol appears on the icon when the rotation is locked.
Tap the rotation lock on. A brief 'Unlocked' message appears. The small lock symbol does not show on the rotation lock icon.
Press the 'Home' button to close the multitasking status bar and return to your Home screen.
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How to Lock Screen Rotation on the iPad (3 Steps)

Hold the iPad in the configuration, portrait or landscape, in which you want to lock the screen.
Locate the screen rotation lock switch, directly above the volume controls on the right hand side of the iPad (when viewed with the Home button on the bottom).
Switch the screen rotation lock button to the down, or locked, position to prevent the screen from rotating with the iPad. When the lock is activated, a lock icon appears at the top of the screen.
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How to Connect a Laptop to an ELMO Projector (9 Steps)

Turn on the projector's power switch to warm up the lamp. Then lower the projector screen, unless projecting to a blank wall.
Raise the side lamps on the ELMO desk projector to the upright, locked position.
Press and hold the lever switch that controls the video displayer rod, on the round base on the ELMO projector. Then raise the video displayer rod to the upright position as far as it will go.
Press the 'Power' toggle switch on the ELMO.
Press the 'Computer' button on the remote control repeatedly until the ELMO displays on the projector screen.
Attach the VGA plug on one end of the cable to the matching port on the back or edge of the laptop. The wide edge of the plug should face upward. Turn the lock screw on each side of the VGA plug to hold it securely to the laptop.
Hook up the other end of the cable to the VGA port on the back connection panel of the ELMO projector. Tighten the lock screws to prevent the cable from pulling out.
Press the 'RGB1' button on the ELMO under the 'Input' section of the control panel.
Press the 'Fn' (function) key on the laptop and one of the F1 through F8 keys to toggle the laptop to work with an external projector. The key varies on different laptop models. Look for the small icon of a monitor screen on one of the F1 through F8 keys. You might have to press and release the 'Fn' and the numbered 'F' key several times while the laptop cycles through the various possible external monitor connections.
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How to Become System Administrator on a MacBook

Add a new user to the Macintosh system. Click on the Apple menu in the upper left hand corner. Then go to the System Preferences and click on accounts. You will be prompted to enter the administrator password. Click on the Add button and type the new user's name and password.
Set parental controls for the user. It's possible to set parental control on any user account as the system administrator. The two most common parental controls are time limits and bedtimes. The time limits set a maximum amount of time allowed on a computer in a given day. Bedtimes establish off hours where access to the computer is prohibited.
Install new software on the Macintosh system. This task requires system administrator privileges. The most common method to install software on a Macintosh is done using fink. Simply type in the word 'fink' on the command line and enter the system administrator password when prompted.
Perform backups of important computer data. This is done using 'Time Machine.' With Time Machine, you could schedule automated backups as the system administrator so that the computer can be restored if the hard drive fails.
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