Apple’s new lineup may look identical to its predecessor (the [ ] that brought the fixed battery and SD card slot to the line), but under the hood, changes to both the CPU and GPU combine to make an impressive leap in performance over the systems these replace. The new 15-inch MacBook Pro comes in three standard configurations, all priced similarly to the last iteration. All three models come standard with 4GB of DDR3 RAM, two graphics processors, and a glossy 15.4-inch LED-backlit screen.
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The $1799 entry-level system comes with a 2.4GHz Core i5 processor and a 320GB hard drive; it replaces a $1699 model with a 2.53GHz Core 2 Duo processor, 2GB of RAM, a 250GB hard drive, and integrated graphics only. The next step up the line is a $1999 system with a 2.53GHz Core i5 processor and a 500GB hard drive, which takes the place of a $1999 2.66GHz Core 2 Duo-based system with 4GB of RAM, dual graphics, and a 320GB hard drive. At the top of the line sits a $2199 model with a 2.66GHz Core i7 processor and a 500GB drive; its $2299-predecessor had a 2.8GHz Core 2 Duo model with 4GB of RAM, and a 500GB hard drive. See Macworld's What’s new?
The new 15-inch MacBook Pro models drop the Intel Core 2 Duo processors (used in Apple’s laptop line since late 2006) in favor of Intel’s. The Core i5 and i7 processors have a few interesting performance features, including, which uses virtual cores to double the amount of processing cores presented to the operating system. The processors have dual cores, but OS X treats them as having four cores. Another i5/i7 technology,, allows the processor to speed up for a short period of time when necessary, or shut down unused cores and give the resources to the cores in use. Turbo Boost can increase the clock speed of the 2.4GHz Core i5 processor up to 2.93GHz, for example.
The mobile versions of the Core i5 and i7 used in the MacBook Pro differ from the desktop version found in the, which has four physical processing cores. The desktop Core i5 does not support Hyper-Threading, though the mobile version does. All 15-inch MacBook Pros now offer both integrated and discreet graphics— previously, the entry-level 15-inch MacBook Pro had only integrated graphics.
The new models can use Intel HD integrated graphics (which shares 256MB of main memory with the CPU) for general-use applications, like iTunes, Mail and Safari. But for applications that require more horsepower, the system can use its discrete Nvidia GeForce GT330M graphics, with 256MB of dedicated graphics memory. Not only are the graphics processors new to these systems, there’s also a new automatic graphics switching technology developed by Apple that looks for frameworks used by individual apps at launch (such as OpenGL and Core Animation) to decide when to seamlessly switch from its energy-sipping integrated graphics to the higher-powered discrete graphics processor. Previously, a user had to decide which graphics to use and switching between them required logging out and back into OS X. One interesting note about the automatic switching: Any application that uses the required frameworks can trigger a switch from integrated to discrete graphics. Also new is the support for inertial scrolling on the Multi-Touch glass trackpad.
Microsoft excel for mac 2011. In Excel 2011 for mac, a PivotTable is a special kind of table that summarizes data from a table, data range, or database external to the workbook. If you’re PivotTable aficionado, you will be in seventh heaven with the new PivotTable capabilities in Office 2011 for Mac. Excel’s Formula Builder in Office 2011 for Mac is a tool in Toolbox designed to help you build cell formulas. You start at the top of the Formula Builder and work your way down to put a finished cell formula into an empty cell. The following example builds a formula to count the number of times the word apple is in a list. To follow along, type data into cells as shown in A1:D5 (or enter your own list where a word appears more than once). When sorting your Excel tables and worksheets in Office 2011 for Mac, you’re likely to use ascending and descending sort orders most often. The quick way to sort a table or data range is to select a cell in the column you want to sort. Then go to the Ribbon’s Data tab, find the Sort and Filter group, and click Sort. Office 2011 for Mac For Dummies isthe perfect companion for Microsoft Office for Mac users upgradingto the newest version, new computer users, and those who may haveswitched from the Windows version of Office. Written by one of themost popular gurus in the Mac community, Bob 'Dr. Mac' LeVitus, thebook explains every 2011 application so you can become savvy in notime.