How to Add Macbook Memory

Shut down and unplug your MacBook.
Open the computer case by loosening and removing the eight small screws around the edge of the computer back.
Discharge any static electricity in your body by touching a piece of metal. Static charges can damage sensitive components inside your MacBook.
Locate the memory card(s) toward the right side of the back of the computer.
Remove memory card by pressing the levers on either side of the memory card(s).
Install new memory card by inserting it at an angle into the memory slot the same way you removed the old card. Apply steady, even pressure and do not force the device into place. Repeat the same process for the second memory slot.
Close the computer case by snapping the bottom plate into the same position it was when you removed it. Replace the screws and tighten them firmly.
Plug in and start up your MacBook. It is ready to use with its new memory.
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How to Activate 3G on an iPad

Tap the 'Settings' icon on your iPad and press 'Cellular data' in the 'Settings' menu to open the 3-G connection wizard.
Choose your cellular network provider and data plan type from the options listed. If you don't know how much data you will use, consider selecting the 'Unlimited' or the highest limited plan to start so you will not be subject to overage charges. Once you learn your usage, you can change your plan to a lower limit and price.
Enter your credit card information to pay for your cellular service when prompted.
Enter and confirm your billing information, following the on-screen prompts to complete your account setup.
Press the 'Home' button to exit the 'Settings' app when your 3-G setup is complete. Any time you want to turn the 3-G service on or off, tap 'Settings' and choose 'Cellular data' and slide the virtual switch on or off.
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