2008年10月21日星期二

MacBook

Apple computer called "MacBook". For the MacBook family as a whole, see MacBook family.
Apple MacBook
The MacBook is a line of Macintosh notebook computer by Apple Inc. Introduced in May 2006, it replaced the iBook G4 and 12" PowerBook series of notebooks as a part of the Apple Intel Transition. Part of the MacBook Family, the MacBook is aimed at the education and consumer markets. There have been two designs of the MacBook: the first uses a polycarbonate casing that was modeled after the iBook G4, while the second uses an unibody aluminum casing.
Polycarbonate MacBook
The standard Macbook White.
The original MacBook was released on May 16, 2006, and used the Intel Core Duo processor and 945GM chipset, with Intel's GMA950 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's X3100 integrated graphics on an 800 MHz system bus.
While thinner than the iBook G4 that it replaced, the MacBook was wider than the 12" model due to its widescreen display. In addition, the MacBook adopted Apple's newer MagSafe power connector and replaced the iBook's mini-VGA display port with a mini-DVI display port. The iBook's discrete graphics chip was replaced with an integrated Intel GMA solution. When the aluminum MacBook was announced, the low-end white MacBook was given an optical drive update and a lower price and was kept as the MacBook White.
Industrial Design
While the MacBook 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 that shipped with the iMac: adding the same player-function hot-keys and removing the embedded virtual numeric keypad and the Apple logo from the command keys.[1]
Offered in white and black models, the MacBook was also the first Macintosh to be offered in more than one color since the iBook G3 (Clamshell).
User serviceability
The polycarbonate MacBook is easier for users to service than its predecessor. The iBook requires substantial disassembly to access most internal components, whereas the polycarbonate MacBook only needs the outer shell removed to access almost any interior component. Apple provides do-it-yourself manuals for replacing MacBooks' hard drive and memory.[2]
Quality problems
After some early MacBook owners complained of discoloration on the palm rests of their white MacBooks,[3] Apple replaced the defective part with more smudge-resistant plastics.Many customers have complained about cracks on the polycarbonate MacBook's bottom case that appear after weeks or months of careful use due to the poor quality of the plastic and over-tightening of the screws.[7] Apple has responded to these complaints by providing free repairs for cracks that appear on the keyboard plate, but not the bottom case.
Aluminum MacBook
During a special event held in Cupertino on October 14, 2008 titled "The Spotlight Turns To Notebooks", Apple announced the aluminum MacBook with a new nVidia chipset. The chipset brought a 1066 MHz system bus, use of DDR3 system memory, and integrated NVIDIA GeForce 9400M graphics that is up to five times faster than the graphics offered on the White MacBook.[14] Changes also include an LED-based display, a new Mini DisplayPort (replacing the polycarbonate MacBook's mini-DVI port), a multi-touch glass trackpad, and the removal of FireWire. [15]
Industrial Design
The aluminum MacBook resembles the MacBook Pro, but with smaller dimensions. It is slightly thinner than earlier MacBooks due to its use of a unibody aluminum case with tapered edges. In addition, the keyboard of the high-end model is backlit like that of the MacBook Pro and MacBook Air.
Quality Problems
Reviews have described the display of the aluminum MacBook as of lesser quality than the one found on the MacBook Pro. It has less viewing angle capabilities, washed out colors, and the backlighting is not as bright as the screen of the Pro.

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