The MacBook is a brand of notebook computers manufactured by Apple Inc. from May 2006 to February 2012, and relaunched in 2015. It replaced the iBook series and 12-inch PowerBook series of notebooks as a part of the Apple-Intel transition from PowerPC. Positioned as the low end of the MacBook family, below the premium ultra-portable MacBook Airand the powerful MacBook Pro, the MacBook was aimed at the consumer and education markets. It was the best-selling Macintosh ever. For five months in 2008, it was the best-selling laptop of any brand in US retail stores. Collectively, the MacBook brand is the "world's top-selling line of premium laptops.

There have been four separate designs of the MacBook. The original model used a combination of polycarbonate and fiberglass casing which was modeled after the iBook G4. The second type was introduced in October 2008 alongside the 15-inch MacBook Pro; the MacBook shared the more expensive laptop's unibody aluminum casing, but omitted FireWire. A third design, introduced in late 2009, had a polycarbonate unibody casing.

 On July 20, 2011, the MacBook was discontinued for consumer purchase as it had been effectively superseded by the MacBook Air whose starting price was lowered. Apple continued to sell the MacBook to educational institutions until February 2012.

A new, redesigned MacBook line was launched on March 9, 2015. Available in silver, gold or space grey, it is thinner than the MacBook Air and removes the traditional MagSafe charging port (along with all other ports, except the headphone jack) in favor of the multi-purpose USB Type-C port. It also features a Retina Display. On April 19, 2016, Apple updated the 12-inch Retina MacBook with new sixth-generation Intel Core M processors, longer battery life and a rose gold option.

MacBook, available in black or white colors, was released on June 28, 2006, and used the Intel Core Duo processor and 945GM chipset, with Intel's GMA 950 integrated graphics on a 667 MHz front side bus. Later revisions of the MacBook moved to the Core 2 Duo processor and the GM965 chipset, with Intel'sGMA X3100 integrated graphics on an 800 MHz system bus.Sales of the black polycarbonate MacBook ceased in October 2008, after the introduction of the aluminum MacBook.

While thicker than its predecessor – the iBook G4 – the MacBook is wider than the 12-inch model due to its widescreen display. In addition, the MacBook was one of the first (the first being the MacBook Pro) to adopt Apple's MagSafe power connector and it replaced the iBook's mini-VGA display port with a mini-DVI display port. The iBook's discrete graphics chip was initially replaced by an integrated Intel GMA solution, though the latest revisions of the MacBook were upgraded with the more powerful Nvidia GeForce 9400M and later the 320M.

While the MacBook Pro largely followed the industrial design standard set by the PowerBook G4, the MacBook was Apple's first notebook to use features now standard in its notebooks – the glossy display, the sunken keyboard design and the non-mechanical magnetic latch. With the late 2007 revision, the keyboard received several changes to closely mirror the one which shipped with the iMac, by adding the same keyboard short-cut to control multimedia, and removing the embeddednumeric keypad and the Apple logo from the command keys.

A more expensive black model was offered until the introduction of the unibody aluminum MacBook. The polycarbonate MacBook was the only  Macintosh notebook (until the new 2015 model) to be offered in more than one color since the iBook G3 (Clamshell).


Step 1
Ensure that all of your files are backed up to an external hard drive. When you revert your MacBook back to factory settings, you will also be deleting all the data on your hard drive.

Step 2
Once your files are backed up, shut down your Mac Book Pro. Plug it into the AC adapter, and then boot it back up. Finally, press and hold “Command-R” (the “Command” and “R” keys at the same time) to start the restore process. Hold these keys until the Apple logo appears on the screen, and then release them. You will be taken to an alternative boot screen with a “Mac OS X Utilities” menu.

Step 3
In order to complete a system restore, you will need to connect your computer to the Internet. Select “Wi-Fi” from the Utilities menu and find the router you will be using. Enter your Wi-Fi username and password to connect.

Step 4
Depending on which version of OS X you are using, your Utilities menu will be slightly variant. Look for either “Internet Recovery” or “OS X Recovery,” and select whichever one you find. This should present you with a “Reinstall OS X” option. Click on it, and then wait as your MacBook Pro connects to the Internet and gathers information on your laptop from Apple servers.

Step 5
Once the re-installation process is completed, you can either restart your computer, provide your Apple ID information, and start copying your files back over to the computer from your external hard drive.

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