Hvad er de forskellige størrelser af macbook pro?
På Apples Worldwide Developers Conference (WWDC) den 8. juni 2009 blev det annonceret, at 13-tommers MacBook med ensidigt kabinet ville blive opgraderet og omdøbt til MacBook Pro, så der kun var den hvide MacBook i polycarbonat tilbage i MacBook-serien. Det blev også annonceret, at hele MacBook Pro-serien ville bruge det batteri, der ikke kan fjernes af brugeren, og som først blev introduceret i 17" MacBook Pro. Den opdaterede MacBook Pro 13- og 15-tommer MacBook Pro vil hver især have op til syv timers batterilevetid, mens 17-tommer MacBook Pro vil beholde sin otte timers kapacitet. Nogle kilder har endda rapporteret om op til otte timers batterilevetid for 13- og 15-tommer MacBook Pro'erne ved afslappet brug, mens andre har rapporteret om omkring seks timer. Ligesom den 17-tommer MacBook Pro hævder Apple, at de vil holde omkring 1.000 opladningscyklusser, mens de stadig indeholder 80 procent af deres kapacitet. Mulighederne for grafikkort forblev de samme som i den tidligere udgave, selv om 13-tommer og 15-tommer basismodellen kun kom med GeForce 9400M GPU'en. Skærmene blev også forbedret, idet de fik et påstået 60 procent større farvespektrum. Alle disse modeller fra midten af 2009 indeholdt også en FireWire 800-port, og alle undtagen 17-tommer-modellerne ville få et SD-kortslot. 17-tommersmodellen ville beholde sin ExpressCard/34-slot. For 13" MacBook Pro-modellen blev Kensington-låsesporet flyttet til højre side af chassiset. I august 2009 udvidede Apple den "matte" antirefleksskærm til også at omfatte 15" MacBook Pro-modellen.
At Apple's Worldwide Developers Conference (WWDC) on June 8, 2009, it was announced that the 13-inch unibody MacBook would be upgraded and re-branded as a MacBook Pro, leaving only the white polycarbonate MacBook in the MacBook line. It was also announced that the entire MacBook Pro line would use the non user-removable battery first introduced in the 17-inch MacBook Pro. The updated MacBook Pro 13- and the 15-inch would each have up to a claimed seven hours of battery life, while the 17-inch would keep its eight-hour capacity. Some sources even reported up to eight hours of battery life for the 13- and 15-inch MacBook Pros during casual use, while others reported around six hours. Like the 17-inch MacBook Pro, Apple claims that they will last around 1,000 charge cycles while still containing 80 percent of their capacity. Graphics card options stayed the same from the previous release, although the 13-inch and the base model 15-inch, came with only the GeForce 9400M GPU. The screens were also improved, gaining a claimed 60 percent greater color gamut. All of these mid 2009 models also included a FireWire 800 port and all except the 17-inch models would receive an SD card slot. The 17-inch model would retain its ExpressCard/34 slot. For the 13-inch MacBook Pro, the Kensington lock slot was moved to the right side of the chassis. In August 2009, Apple extended the "matte" anti-glare display option to the 15-inch MacBook Pro.
MacBook Pro