How to Turn Off Numbers Lock on a Mac

Click on the Apple logo and select 'System Preferences.' Then, select 'Universal Access' in the System category.
Click on the 'Mouse' tab. Select 'On' next to 'Mouse Keys.' Pressing the numbers on the number pad will move the mouse as if the numbers were arrow keys. The number 8 moves the mouse up; 2 moves the arrow down; 4 moves the arrow to the left; and 6 moves the arrow to the right.
Click on 'Press the Option key five times to turn Mouse Keys on or Off' to enable the shortcut for essentially turning on and off Num Lock. Close 'System Preferences.'
Press the 'Option' key five times. Mouse keys will be enabled. Pressing the numbers on the number pad will move the mouse.
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How to Find the Model Number for a MacBook (9 Steps)

Turn your MacBook over and look for the text located on the bottom casing.
Look for the segment of text that shows the 'Model No:' text. Model numbers start with one or two letters, followed by a series of numbers.
Locate the retail box your MacBook came in and view the model number information on the sticker. The sticker usually appears on the outside flap.
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