The MacBook Pro comes with a software bundle that includes OS X Lion, their newest operating system, and a suite of software for organizing, socializing, creating and editing media, and browsing the web.

Since Apple released its new Lion operating system earlier this year, all of the new MacBook Pros come with it. Lion has received mixed reviews. Critics complain that the software didn't make enough improvements over its predecessor, Snow Leopard, and some even compare it to Windows Vista, Microsoft's notoriously buggy OS. While others are saying that Lion doesn't offer as many big improvements as Apple's normally includes with upgraded operating systems, Lion is still worth the upgrade [source: Siracusa].

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All new MacBook Pros come with Mail and iCal to help keep your emails and schedule organized. Mail is built-in email software -- sort of similar to Microsoft Outlook -- that lets you download and organize emails. Apple's iCal is a calendar program where you can keep track of appointments. Users that have other Apple devices, like the iPad and iPhone can synch iCal with the phone or the tablet to keep appointment information handy on the go. You can also synch iCal with Google calendar, if you prefer using that to keep track of events.

The MacBook Pro also comes with the iLife suite of software, so media buffs can create music in GarageBand, do some simple video editing in iMovie, and organize and edit photos using iPhoto. With iTunes you can organize your music library and download music and podcasts easily.

The new MacBook Pro also includes FaceTime, a video chat software, that works with the built-in FaceTime HD Camera (more on the camera on the next page). You can use FaceTime to video chat with friends, family, and co-workers, provided they are also on a MacBook, iPhone, or iPad. Some users complain that this is a drawback to the software, since it limits who you can chat with [source: Perez].

Of course, other software is available for sale. For instance, iWork, Mac's suite of office software, is available. MacBook Pro's Time Machine, which helps back up your computer automatically, is also available. You can also use Time Machine with the Apple Time Capsule, which is a router with a hard drive built into it. Either way, Time Machine saves your old files and remembers what your computer's setup was in the past. That means that if something starts to act buggy, you can restore your machine to the settings it had before it started acting up [source: Apple].

Up next, we'll take a look at the accessories Apple offers to deck out the new MacBook Pros.

Use Calculator to perform basic, advanced, or programmer calculations. If your Mac has a Touch Bar, you can easily do quick calculations—without even moving the pointer.

Tip: To learn a key’s function, hold the pointer over the key to see its help tag.

Change the calculator

• In the Calculator app on your Mac, choose an option from the View menu:

  • Basic: Perform simple arithmetic operations.

  • Scientific: Use memory functions and perform advanced calculations involving fractions, powers, roots, exponents, logarithms, trigonometry, and more.

  • Programmer: Perform binary, octal, decimal, and hexadecimal calculations, including bitwise operations. You can also view the ASCII and Unicode characters represented by the current value.

Convert values

• In the Calculator app on your Mac, enter the original value, choose Convert in the menu bar, then choose a category, such as Temperature or Currency.

  Note: You must be connected to the internet to get the most recent currency conversion rate.

Round results

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• In the Calculator app on your Mac, choose View > Decimal Places, then choose the number of decimal places to display. Calculator stores the full value and displays the rounded value. If the displayed value shows fewer decimal places than you specified, the undisplayed decimal places are zeros.

Enter complex equations using Reverse Polish Notation (RPN)

1. In the Calculator app on your Mac, choose View > RPN Mode.

   The stack is shown in Calculator’s display, the Equal Sign key (=) becomes the Enter key, and four keys appear for manipulating numbers on the stack.

2. Do any of the following:

   • Swap the bottom two numbers on the stack: Click the Exchange Registers key .

   • Move the most recently entered number up or down on the stack: Click the Roll Up key or Roll Down key .

   • Remove the bottom number from the stack: Click the Drop key.

Correct unexpected results

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In the Calculator app on your Mac, do any of the following:

• Repeat the calculation, keeping in mind that Calculator uses the fundamental order of operations to evaluate expressions. For example, multiplication operations are completed before addition and subtraction.

• If the programmer calculator displays numbers in an unexpected format, change to octal, decimal, or hexadecimal format: click the 8, 10, or 16 key, respectively, under the calculator’s display. Or use the basic or scientific calculator.

• If the result contains no decimal points:

  • Choose View > Basic or View > Scientific, because the programmer calculator truncates all digits after the decimal point. For example, if you enter 99 / 10 =, the result is 9. Use the basic or scientific calculator to get more precise results.

  • Choose View > Decimal Places (in any calculator), because the number of decimal places may be set incorrectly and the calculator rounds the result. For example, if decimal places is set to zero and you enter 99 / 10 =, the result is 10.

• If you’re not sure you entered the calculation correctly, use the Paper Tape (choose Window > Show Paper Tape) to review what you entered.

• If you prefer to display a comma separator, choose View > Show Thousands Separators to display the comma in larger numbers.

Use keyboard shortcuts

In the Calculator app on your Mac, use keyboard shortcuts to quickly enter calculations; the shortcuts vary based on the type of calculator you’re using.

All calculator types

Scientific calculator

RPN Mode

To show a running list of your calculations, choose Window > Show Paper Tape.

To perform advanced calculations involving equations and graphs, use the Grapher app. See the Grapher User Guide.