How to Change the Process Priority on a Mac (5 Steps)

Click 'Applications' on the Dock, then 'Utilities.' Click 'Activity Monitor.' Leave this application open.
Click 'Applications' on the Dock, then 'Utilities.' Click 'Terminal.'
Check in Activity Monitor for the process you want to change. Each process is assigned an ID, the PID (process ID). Make a note of the PID.
Switch back to Terminal.
Type 'nice +20 -p 0000' (without quotes). Replace the '+20' with a value between '+20' and '-20.' -20 is the highest priority item and +20 is the lowest priority item. The '-p' parameter determines to affect a process. Replace '0000' with the process ID (PID) for your process. Press 'Enter.'
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How to Change OS X Machine Identifier (6 Steps)

Select the 'About this mac' option that is located on the Apple menu from the desktop.
Click the 'More info' button from the dialog box that appears. This opens the System Profile dialog box.
Select the 'Network' option that is on the left side of the contents menu. The host ID will be whatever value is listed for the 'Ethernet Address.'
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How to Change the Last Opened Date for a File on a Mac

Open the 'Go' menu and select 'Utilities.' Click on 'Terminal.'
Type the following into the Terminal window: 'touch -mt YYYYMMDDhhmm.' YYYY is the year, as in 2001. MM is the month, like 03. DD is the day as in 06. Hh is the hour as in 08. Mm is the minute as in 34.
Select the file whose date you want to change and drag it over the Terminal window. Drop the file into the Terminal. The file's file path will show up in the Terminal window.
Click 'Return' on the keyboard.
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How to Sync an iPhone and a Kindle (3 Steps)

Download the free Kindle application from the App store on the iPhone homescreen. This is the blue icon with an 'A' in the middle.
Tap the Kindle icon to open it when installation is complete. The Kindle icon is says 'amazon.com' on the top and 'Kindle' on the bottom and has a blue background with a person sitting by a tree reading.
Log into your Amazon account. The login screen will open the first time Kindle is accessed from the iPhone. All devices that have accessed the Kindle account are now synced with each other and ready to retrieve the latest book.
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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 Turn Off the Trackpad Button on a Mac (3 Steps)

Click the 'Apple' icon in the computer's menu bar and select the 'System Preferences' option from the Apple menu.
Click the 'Trackpad' icon beneath the 'Hardware' heading to view the trackpad settings.
Remove the checkmark next to the 'Clicking' setting to disable the trackpad's ability to register taps as button presses.
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How to Turn on a Webcam on a MacBook Pro

Launch iChat. Select your account type from the drop-down menu if you are a first-time user. Type your screen name and password, and click 'Continue.'
Click 'Done' on the Conclusion page and your 'Buddy' list will pop up.
Bring up the iSight camera box by clicking on the 'Camera' icon at the top of your buddy list. Alternatively, go to 'Video' at the top of the iChat Screen, then select 'Video Preview.'
Click the 'Camera' icon next to an online buddy if you want to initiate a video chat session or conferencing call.
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