On June 11, 2012, at the Worldwide Developers Conference (WWDC) in San Francisco Apple introduced a new third generation MacBook Pro, marketed as the “MacBook Pro with Retina display” to differentiate it from the updated models of the previous generation released earlier that day. 0000The new model includes an Ivy Bridge chipset with USB 3.0, and a high-resolution 15.4″ 2880×1800-pixel Retina display. Other new or changed features include a second Thunderbolt port, an HDMI port, and the thinner MagSafe 2 adapter.
The new model omits Ethernet and FireWire 800 ports, though Apple announced Thunderbolt adapters for both interfaces along with its release. It also omits a SuperDrive, making it Apple’s first professional notebook since the PowerBook 2400c to ship without a built-in optical drive. The new model ships with a solid state drive standard rather than a hard disk drive. Apple also claims improved speakers and microphones and a new system for cooling the notebook with improved fans.
The Retina models are also significantly less upgradeable/repairable than previous MacBooks. Unlike the previous generation, memory is soldered to the logic board and is only upgradable at time of purchase. The solid state drive is not soldered and could be replaced if it fails, but uses a proprietary daughtercard and cannot be swapped for a larger or third-party flash unit. The battery is glued into place; attempts to remove it may destroy the battery and/or trackpad. The entire case uses proprietary pentalobe screws and cannot be disassembled with standard tools. Greenpeace spokesman Casey Harrell said Apple “has pitted design against the environment—and chosen design. They’re making a big bet that people don’t care, but recycling is a big issue.”
The Retina display MacBook Pro largely follows the styling of the previous generation with its aluminum enclosure and separated black keys. The most apparent body changes are a thinner chassis, and a display with a redesigned hinge and thinner bezel. The power button is now located on the keyboard rather than the upper right corner of the chassis. At 0.71 inches (18 mm) thick it is 25 percent thinner than its predecessor. Unlike any previous Macintosh laptops the model name is not visible when the computer is in normal use as the model now has its name on the underside of the chassis rather than the screen bezel, where it had been located on all Macintosh laptops after the PowerBook 280c in 1995
Xem thêm bài viết khác: https://stop-violence.org/cong-nghe/