MacBook - facts from Wiki
The MacBook is a brand of notebook computers manufactured by Apple Inc. from early 2006 to late 2011, 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 Air and the powerful MacBook Pro,3 the MacBook was aimed at the consumer and education markets.4 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.5 Collectively, the MacBook brand is the "world's top-selling line of premium laptops."6
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, which hurt sales.7not in citation given A third design, introduced in late 2009, had a polycarbonate unibody casing and no FireWire ports.
Źródło: https://en.wikipedia.org/wiki/MacBook
Self Repair laptops - is worth it?
Many people have manual skills and knowledge that allow them to repair various electronic equipment alone. In the case of laptop case it is much more complicated, and their construction is not as straightforward as it might seem. So if your laptop crashes, not worth the risk of self-repair, but immediately give it to the appropriate service. In such places work experienced people who know exactly build laptops and are able to efficiently fix them without causing even greater faults. If we want this to our laptop long served us, we should use just such solutions, and thus avoid the additional costs and problems associated with lack of access to the computer.
Basic knowledge
The form of a traditional laptop computer is a clamshell, with a screen on one of its inner sides and a keyboard on the opposite. It can be easily folded to conserve space while traveling. The screen and keyboard are inaccessible while closed. Devices of this form are commonly called a 'traditional laptop' or notebook, particularly if they have a screen size of 11 to 17 inches measured diagonally and run a full-featured operating system like Windows 10, OS X or Linux. Traditional laptops are the most common form of laptops, although Chromebooks, Ultrabooks, convertibles and 2-in-1s (described below) are becoming more common, with similar performance being achieved in their more portable or affordable forms.
Źródło: https://en.wikipedia.org/wiki/Laptop#Traditional_laptop