Chapter 6. Entering Data, Moving Data, & Time Machine

The original 1984 Mac didn’t make jaws drop because of its speed, price, or sleek looks. What amazed people was the simplicity and elegance of the user interface. At some point in every Apple demo, the presenter copied a graphic drawn in a painting program (MacPaint) and pasted it directly into a word processor (MacWrite), where it appeared neatly nestled between typed paragraphs of text.

We take these examples of data input and data exchange for granted today. But in those days, that little stunt struck people like a thunderbolt. After all, if this little computer let you copy and paste between different programs, it could probably do anything.

Today, the Mac is even more adept at helping you enter, move, and share your hard-won data. Mac OS X offers several ways to move information within a single document, between documents, between programs, and even between the Mac and Windows computers. This chapter leads you through this broad cycle of data: from entering it with the mouse and keyboard, to moving it around, to backing it up.

All through this book, you’ll find references to certain keys on Apple’s keyboards. “Hold down the key,” you might read, or “Press Control-F2.” If you’re coming from Mac OS 9, from Windows, or even from a typewriter, you might be a bit befuddled. (The reader email generated by previous editions of this book made that quite clear. “The alphabet has 26 letters,” one went. “Why do I need 101 keys?”)

To make any attempt at an explanation even more complicated, Apple’s keyboards keep changing. The one you’re using right now is probably one of these models:

Here, then, is a guided tour of the non-typewriter keys on the modern Mac keyboard:

As the previous section makes clear, the F-keys at the top of modern Mac keyboards come with predefined functions. They control screen brightness, keyboard brightness, speaker volume, music playback, and so on.

But they didn’t always. Before Apple gave F9, F10, and F11 to the fast-forward and speaker-volume functions, those keys controlled the Exposé window-management function described in Chapter 5.

So the question is: What if you don’t want to trigger the hardware features of these keys? What if you want pressing F1 to mean “F1” (which opens the Help window in some programs)? What if you want F9, F10, and F11 to control Exposé’s three modes, as they once did?

For that purpose, you’re supposed to press the Fn key. The Fn key (lower-left on small keyboards, center block of keys on the big ones) switches the function of the function keys. In other words, pressing Fn and F10 triggers an Exposé feature, even though the key has a Mute symbol () painted on it.

But here’s the thing: What if you decide that you use those F-keys for software features (like Cut, Copy, Paste, and Exposé) more often than the hardware features (like brightness and volume)?

In that case, you can reverse the logic, so that pressing the F-keys alone triggers software functions, and they govern brightness and audio only when you’re pressing Fn.

To do that, choose →System Preferences→Keyboard. Turn on the checkbox “Use all F1, F2, etc. keys as standard function keys.”

And that’s it. From now on, you press the Fn key to get the functions painted on the keys (, , , , , , , , and so on).

Apple isn’t too proud to steal good ideas from Microsoft; goodness knows, Microsoft has stolen enough from Apple. So in Snow Leopard, shortcut menus are more important than ever (Figure 6-2).

They’re so important, in fact, that it’s worth this ink and this paper to explain the different ways you can trigger a “right-click” (or a secondary click, as Apple calls it, because not all these methods actually involve a second mouse button, and it doesn’t have to be the right one):

Something strange has been quietly taking place at Apple: Typing has been getting a lot of attention.

It began when Apple created a system-wide spelling checker. For the first time in computer history, the operating system took over spelling fixes. You didn’t have to maintain a separate spelling checker for each program you used. Now there’s just one, and it works in most Apple programs: TextEdit, Stickies, iChat, Mail, iCal, Safari, Pages, iPhoto, iMovie, and so on. Add a word to the dictionary in one program, and it’s available to all the others.

In Mac OS X 10.5 (Leopard), Apple added a grammar checker.

Now, in Snow Leopard, there’s much more. There’s text substitution, where you type addr and the system types out “Irwina P. McGillicuddy, 1293 Eastport Lane, Harborvilletown, MA, 02552.” (The same system auto-corrects common typos like teh instead of the.) There’s also a case-flipping feature that can change selected text to ALL CAPS, all lowercase, or First Letter Capped. Both of these new features are available in most Apple programs and in any other programs that tap into Mac OS X’s built-in text processing circuitry (although not, alas, Microsoft programs).

Mac OS X can give you live, interactive spelling and grammar checking, just as in Microsoft Word and other word processors. That is, misspelled words or badly written sentences or fragments get flagged (with a dashed red underline for spelling problems and a green one for grammar problems) the moment you type them. Here’s the crash course:

This one’s kind of cool: a new Snow Leopard feature that auto-replaces one thing you type with something else. Why? Because it can do any of these things.

For example, Snow Leopard can insert attractive “curly quotes” automatically as you type “straight ones,” or em dashes—like this—when you type two hyphens (--like that). It can also insert properly typeset fractions (like 1/2) when you type 1/2.

You can see the list of built-in substitutions—and create your own—in the System Preferences→Language & Text→Text tab, as shown in Figure 6-5.

Apple doesn’t want to drive you nuts, though, so it makes sure you’re sure you really want these swappings to take place. So you have to turn on each of these features manually, in each program. (These commands are available anywhere you do a lot of typing, like TextEdit, Mail, and Stickies.)

That is, you can program addr to type your entire return address. Create two-letter abbreviations for big legal or technical words you have to type a lot. Set up goaway to type out a polite rejection letter for use in email. And so on.

This feature has been in Microsoft Office forever (called AutoCorrect), and it’s always been available as a shareware add-on (TypeIt4Me and TextExpander, for example). But now it’s built right into most Apple programs, plus any others that use Apple’s text-input plumbing.

You build your list of abbreviations in the System Preferences→Language & Text→Text tab, shown in Figure 6-5. See the list at left? Click the button to create a new row in the scrolling table of substitutions.

Click in the left column and type the abbreviation you want (for example, addr). Click in the right column and type, or paste, the text you want Mac OS X to type instead.

Here again, you have to explicitly turn on the text-replacement feature in each program (TextEdit, Mail, Stickies, and so on). To do that, choose Edit→Substitutions→Text Replacement, so that a checkmark appears.

That’s it! Now, whenever you type one of the abbreviations you’ve set up, the Mac instantly replaces it with your substituted text.

The final new chunk in Snow Leopard’s text-massaging tool chest is case swapping—that is, changing text you’ve already typed (or pasted) from ALL CAPS to lowercase or Just First Letters Capitalized.

This one’s simple: Select the text you want to change, and then choose from the Edit→Transformations submenu. Your options are Make Upper Case (all caps), Make Lower Case (no caps), and Capitalize (first letters, like a movie title).

Keep that in mind the next time some raving lunatic SENDS YOU AN EMAIL THAT WAS TYPED ENTIRELY WITH THE CAPS LOCK KEY DOWN.

Apple has always taken pride in its language-friendliness, and Snow Leopard is no exception. You can shift from language to language on the fly, as you type, even in midsentence—without reinstalling the operating system or even restarting the computer.

First, tell your Mac which languages you’d like to have available. Open System Preferences→Language & Text. On the Language tab, you see a listing of the different languages the Mac can switch into, in the corresponding languages—Français, Español, and so on. Just drag one of the languages to the top of the list to select it as the target language, as shown in Figure 6-6.

Now launch Safari, TextEdit, Mail, or Stickies. Every menu, button, and dialog box is now in the new language you selected! If you log out and back in (or restart) at this point, the entire Finder will be in the new language, too.

Of course, if you’re really French (for example), you’ll also want to make these changes:

While the Mac can display many different languages, typing in those languages is another matter. The symbols you use when you’re typing in Swedish aren’t the same as when you’re typing in English. Apple solved this problem by creating different keyboard layouts, one for each language. Each rearranges the letters that appear when you press the keys. For example, when you use the Swedish layout and press the semicolon key, you don’t get a semicolon (;)—you get an ö.

Apple even includes a Dvorak layout—a scientific rearrangement of the standard layout that puts the most common letters directly under your fingertips on the home row. Fans of the Dvorak layout claim greater accuracy, better speed, and less fatigue.

Use the list in the Input Sources pane to indicate which keyboard layout you want. If you select anything in the list, “Show input menu in menu bar” turns on automatically. A tiny flag icon appears in your menu bar—a keyboard menulet that lets you switch from one layout to another just by choosing its name. (To preview a certain keyboard arrangement, launch the Keyboard Viewer program described next.)

Keyboard Viewer, which is descended from the Key Caps program of old, consists of a single window containing a tiny onscreen keyboard (Figure 6-7). When you hold down any of the modifier keys on your keyboard (like ⌘, Option, Shift, or Control), you can see exactly which keys produce which characters. The point, of course, is to help you learn which keys to press when you need special symbols or non-English characters, such as © or ¢, in each font.

It’s a great tool—if you can find it.

Here’s how. Open System Preferences→Language & Text, click Input Sources, and turn on Keyboard & Character Viewer at the top of the list. The window shown at top in Figure 6-7 appears. (Thereafter, you’ll be able to choose its name from the Input menulet at the top of the screen, as shown at top in Figure 6-7.)

To see the effect of pressing the modifier keys, either click the onscreen keys or press them on your actual keyboard. The corresponding keys on the onscreen keyboard light up as they’re pressed.

Here’s a cool step-saver, something no other operating system offers—a little something Apple likes to call data detectors.

In short, Mac OS X recognizes commonly used bits of information that may appear in your text: a physical address, a phone number, a date and time, and so on. With one quick click, you can send that information into the appropriate Mac OS X program, like iCal, Address Book, or your Web browser (for looking up an address on a map).

Here’s how it works: When you spot a name, address, date, or time, point to it without clicking. Mail draws a dotted rectangle around it. Control-click inside the rectangle, or right-click, or click the pop-up at the right side.

As shown in Figure 6-8, a shortcut menu appears. Its contents vary depending on what you’re pointing to:

You can’t paste a picture into your Web browser, and you can’t paste MIDI music information into your word processor. But you can put graphics into your word processor, paste movies into your database, insert text into GraphicConverter, and combine a surprising variety of seemingly dissimilar kinds of data.

The original copy-and-paste procedure of 1984—putting a graphic into a word processor—has come a long way. Most experienced Mac fans have learned to trigger the Cut, Copy, and Paste commands from the keyboard, quickly and without even thinking. Here’s how the process works:

  1. Highlight some material in a document.

    Drag through some text in a word processor, for example, or highlight graphics, music, movie, database, or spreadsheet information, depending on the program you’re using.

  2. Use either the EditCut or the EditCopy command.

    Or press the keyboard shortcuts ⌘-X (for Cut—think of the X as a pair of scissors) or ⌘-C (for Copy). The Macintosh memorizes the highlighted material, socking it away on an invisible storage pad called the Clipboard. If you chose Copy, nothing visible happens. If you chose Cut, the highlighted material disappears from the original document.

    At this point, most Mac fans take it on faith that the Cut or Copy command actually worked. But if you’re in doubt, switch to the Finder (by clicking its Dock icon, for example), and then choose Edit→Show Clipboard. The Clipboard window appears, showing whatever you’ve copied.

  3. Click to indicate where you want the material to reappear.

    This may entail switching to a different program, a different document, or simply a different place in the same document.

  4. Choose the EditPaste command (⌘-V).

    The copy of the material you had originally highlighted now appears at your insertion point—if you’re pasting into a program that can accept that kind of information. (You won’t have much luck pasting, say, a movie clip into Quicken.)

The most recently cut or copied material remains on your Clipboard even after you paste, making it possible to paste the same blob repeatedly. Such a trick can be useful when, for example, you’ve designed a business card in your drawing program and want to duplicate it enough times to fill a letter-sized printout. On the other hand, whenever you next copy or cut something, whatever was already on the Clipboard is lost forever.

As useful and popular as it is, the Copy/Paste routine doesn’t win any awards for speed. After all, it requires four steps. In many cases, you can replace that routine with the far more direct (and enjoyable) drag-and-drop method. Figure 6-9 illustrates how this works.

Note

Most Cocoa programs (Two Kinds of Programs: Cocoa and Carbon) require you to press the mouse button for a split second before beginning to drag.

Virtually every Mac OS X program works with the drag-and-drop technique, including TextEdit, Stickies, Mail, Sherlock, QuickTime Player, Preview, iMovie, iPhoto, and Apple System Profiler, not to mention other popular programs like Microsoft applications, America Online, and so on.

You can also use drag-and-drop in the one program you use every single day: the Finder itself. As shown in Figure 6-10, you can drag text, graphics, sounds, and even movie clips out of your document windows and directly onto the desktop. Graphics and movies turn into ordinary graphics or movie files; text becomes an icon called a clipping file.

When you drag a clipping from your desktop back into an application window, the material in that clipping reappears. Drag-and-drop, in other words, lets you treat your desktop itself as a giant, computer-wide pasteboard—an area where you can temporarily stash pieces of text or graphics as you work.

Considering how many ways there are to move files back and forth between Macs, it seems almost comical that anybody complained when Apple discontinued built-in floppy disk drives. Here’s a catalog of the different ways you can move your files from one computer to another, including some that might not have occurred to you.

One of the principal virtues of a MobileMe account (Chapter 18) is the iDisk, which is basically like a hard drive on the Internet. You can pull it into the screen of any computer, Mac or PC, and copy files to or from it. It therefore makes a very convenient way station for transferring files of any size; there’s even a feature that lets you email anything on your iDisk to anyone without worrying about file size.

The only inconvenience, really, is the $100 a year you’ll have to pay for MobileMe.

FireWire Disk Mode is a brilliant but little-known Macintosh-only feature that lets you turn one Mac into an external hard drive for another. This is by far the fastest method yet for transferring a lot of data—even faster than copying files over a network. It’s extremely useful in any of these situations:

Unfortunately, not all Macs have FireWire anymore; on some laptops, Apple made the tragic mistake of eliminating it. If you’re not so unfortunate, you can use FireWire like this. (In the following steps, suppose your main Mac is an iMac and you want to use a MacBook as an external hard drive for it.)

The next time you turn on the MacBook, it’ll start up from its own copy of Mac OS X, even if the FireWire cable is still attached. (You can disconnect the cable whenever you please.)

Bluetooth is a long-delayed, but promising, cable-elimination technology. It’s designed to let Bluetooth-equipped gadgets communicate within about 30 feet, using radio signals.

Bluetooth comes built into most computers and cellphones, plus the occasional printer, pocket organizer, even camera or camcorder.

Bluetooth is built into all recent Macs. It’s ready, therefore, to connect with Apple’s wireless keyboard and mouse; to get on the Internet using a Bluetooth cellphone as a cordless modem; and to transfer files through the air to similarly equipped gear.

Bluetooth isn’t especially fast—in fact, it’s pretty slow. (You get transfer speeds of 30 to 50 K per second, depending on the distance.) But when you consider the time you’d have taken for wiring, passwords, and configuration using any other connection method, you may find that Bluetooth wins, at least in casual, spur-of-the-moment, airport-seat situations.

And when you consider that Bluetooth works no matter what the gadget—Mac, Windows, cellphone—you can see it has tremendous potential as a universal file-exchange translator, too.

To shoot a file or two across the airwaves to a fellow Bluetooth-equipped Mac fan, first pair your Mac with the other Bluetooth machine, as described on Bluetooth. In System Preferences→Bluetooth, make sure your Mac is Discoverable. Discoverable means “Other Bluetooth gadgets can see me.” (Check the receiving gadget, too, to make sure it’s in Discoverable mode.) Then you’re ready to send:

  1. From the Bluetooth menulet (Figure 6-11, top), choose Send File.

    If you don’t have the Bluetooth menulet on your menu bar, open System Preferences. Click Bluetooth, and turn on “Show Bluetooth status in the menu bar.”

    After a moment, the Select File to Send dialog box appears. (You’ve actually succeeded in opening a program called Bluetooth File Exchange, which sits in your Applications→Utilities folder.)

  2. Navigate to, and select, the files you want to send.

    If you’re trying to send a bunch of them, you may find it easier to drag their icons onto the Bluetooth File Exchange icon in your Applications→Utilities folder.

    Either way, a new Send File dialog box appears, showing the list of Bluetooth machines within range (Figure 6-11, middle).

  3. In the list of found machines, click the name of the one you want to send your files to, and then click Send.

    What happens now depends on how the receiving machine has been set up. In most cases, a dialog box tells the receiver that files are arriving (Figure 6-11, bottom); if she clicks Accept, the download proceeds. She’s then offered the chance to either (a) open each transferred file or (b) reveal its highlighted icon in the Finder.

Documents can take one of several roads between your Mac and a Windows machine: via disk (such as a CD or Zip disk), flash drive, network, email, Bluetooth, iPod, iDisk, Web page, FTP download, and so on.

Without special adapters, you can’t plug an American appliance into a European power outlet, play a CD on a cassette deck, or open a Macintosh file in Windows. Therefore, before sending a document to a colleague who uses Windows, you must be able to answer “yes” to both of the questions below.

Chapter 22 offers details on FTP and Web sharing, two ways to make your Mac available to other computers—Windows PCs or not—on the Internet.

As the old saying goes, there are two kinds of people: those who have a regular backup system—and those who will.

You’ll get that grisly joke immediately if you’ve ever known the pain that comes with deleting the wrong folder by accident, or making changes that you regret, or worst of all, having your hard drive die. All those photos, all that music you’ve bought online, all your email—gone.

Yet the odds are overwhelming that, at this moment, you do not have a complete, current, automated backup of your Mac. Despite about a thousand warnings, articles, and cautionary tales a year, guess how many do? About four percent. Everybody else is flying without a net.

If you don’t have much to back up—you don’t have much in the way of photos, music, or movies—you can get by with burning copies of stuff onto blank CDs or DVDs (Chapter 11) or using the MobileMe Backup program described at the end of this chapter. But those methods leave most of your Mac unprotected: all your programs and settings, not to mention Mac OS X itself.

What you really want, of course, is a backup that’s rock-solid, complete, and automatic. You don’t want to have to remember to do a backup, to insert a tape, to find a cartridge. You just want to know that you’re safe.

That’s the idea behind Time Machine, a marquee feature of Mac OS X. It’s a silent, set-it-and-forget-it piece of peace of mind. You sleep easy, knowing there’s a safety copy of your entire system: your system files, programs, settings, music, pictures, videos, document files—everything. If your luck runs out, you’ll be so happy you set Time Machine up.

Here’s the bad news: Time Machine requires a second hard drive. That’s the only way to create a completely safe, automatic backup of your entire main hard drive.

That second hard drive can take any of these forms:

In all cases, the backup disk must be bigger than the drive you’re backing up (preferably much bigger).

Here’s what you can’t use as the backup disk: an iPod, an iDisk, a removable disk (like a CD or flash drive), or your startup drive.

Sure, it sounds like an Apple plot to sell more hard drives. But you’d be surprised at how cheap hard drives are. At this writing, you can buy a 1-terabyte hard drive (1,000 gigabytes) for $75, for goodness’ sake—and hard drive prices-per-gigabyte go only down.

The first time the Mac sees your second hard drive, it invites you to use it as Time Machine’s backup drive (Figure 6-12, top). That could be the moment you connect an external drive, or the first time you turn on the Mac after installing an internal drive.

If you click Use as Backup Disk, you’re taken immediately to the Time Machine pane of System Preferences (Figure 6-13). It shows that Time Machine is now on, your backup disk has been selected, and the copying process has begun. The Mac copies everything on your hard drive, including Mac OS X itself, all your programs, and everyone’s Home folders.

Your total involvement has been one click. And that, ladies and gentlemen, is the easiest setup for a backup program in history.

Now go away and let the Mac do its thing. The first backup can take hours as the Mac duplicates your entire internal hard drive onto the second drive (Figure 6-12, bottom). The Mac may feel drugged during this time.

From now on, Time Machine quietly and automatically checks your Mac once per hour. If any file, folder, or setting has changed, it gets backed up at the end of the hour. These follow-up backups, of course, take very little time, since Time Machine backs up only what’s changed.

So, should disaster strike, the only files you can lose are those you’ve changed within the past 59 minutes.

By the end of the day, you’ll have 24 hourly backups on that second disk, all taking up space. So at day’s end, Time Machine replaces that huge stash with a single daily backup. You can no longer rewind your system to 3:00 p.m. last Monday, but you can rewind to the way it was at the end of that day.

Similarly, after a month, Time Machine replaces all those 30 dailies (for example) with four weekly backups. Now you may not be able to rewind to October 24, but you can rewind to November 1. (Apple assumes it won’t take you a whole week to notice that your hard drive has crashed.)

The point is that Time Machine doesn’t just keep one copy of your stuff. It keeps multiple backups. It remembers how things were in every folder—not just yesterday, but last week, last month, and so on. It keeps on making new snapshots of your hard drive until the backup drive is full.

At that point, the oldest ones get deleted to make room for new ones.

By the way, if a backup is interrupted—if you shut down the Mac, put it to sleep, or take your laptop on the road—no big deal. Time Machine resumes automatically the next time you’re home and connected.

Time Machine has four faces. There’s the application itself, which sits in your Applications folder; open it only when you want to enter Restore mode. There’s its Dock icon, which also enters Restore mode, but which has a shortcut menu containing useful commands like Back Up Now (and Stop Backing Up).

There’s the Time Machine menulet, which may be the handiest of all. It identifies the time and date of the most recent backup; offers Back Up Now/Stop Backing Up commands; and has direct access to Time Machine’s restore mode and preferences pane.

Finally, there’s its System Preferences pane, where you adjust its settings (Figure 6-13). To see it, choose →System Preferences→Time Machine. Or choose Time Machine Preferences from Time Machine’s Dock icon or menulet.

All right, you’ve got Time Machine on the job. You sleep easy at night, confident that your life’s in order—and your stuff’s backed up.

Then, one day, it happens: Your hard drive crashes. Or you can’t find a file or folder you know you had. Or you save a document and then wish you could go back to an earlier draft. Some kind of disaster—sunspots, clueless spouse, overtired self—has befallen your files. This is Time Machine’s big moment.

Start by pinpointing what you’re looking for, in one of these two ways:

Now click the Time Machine icon on the Dock, or choose Enter Time Machine from the menulet (Figure 6-14, top). Don’t look away; you’ll miss the show.

Your desktop slides down the screen like a curtain that’s been dropped from above. And it reveals…outer space. This is it, the ultimate Apple eye candy: an animated starry universe, with bits of stardust and meteors occasionally flying outward from the massive nebula at the center.

Front and center is your Finder window—or, rather, dozens of them, stretching back in time (Figure 6-14, bottom). Each is a snapshot of that window at the time of a Time Machine backup.

You have four ways to peruse your backup universe:

  • Click individual windows to see what’s in them.

  • Drag your cursor through the timeline at the right side. It’s like a master dial that flies through the windows into the past.

  • Click one of the two big, flat perspective arrows. The one pointing into the past means “Jump directly to the most recent window version that’s different from the way it is right now.”

    In other words, it’s often a waste of time to go flipping through the windows one at a time, because your missing or changed file might have been missing or changed for the past 25 backups (or whatever). What you want to know is the last time the contents of this window changed. And that’s what the big flat arrows do. They jump from one changed version of this window to another. (Or, if you began with a search, the arrow takes you to the most recent version backup with a matching result.)

  • Use the Search box in the corner of the window. You can search for whatever you’re missing in the current backup.

    As you go, the very bottom of the screen identifies where you are in time—that is, which backup you’re examining.

In many ways, the recovery mode is just like the Finder. You can’t actually open, edit, rename, or reorganize anything here. But you can use Quick Look (Quick Look) to inspect the documents, to make sure you’ve got the right version. And you can use icon, list, column, or Cover Flow view to sort through the files you’re seeing.

If you’re trying to recover an older version of a file or folder, highlight it and then click the flat arrow button that’s pointing away from you; Time Machine skips back to the most recent version that’s different from the current one.

If you’re trying to restore a deleted file or folder that you’ve now located, highlight it and then click Restore (lower-right). The Mac OS X desktop rises again from the bottom of the screen, there’s a moment of copying, and then presto: The lost file or folder is back in the window where it belonged.

The Finder isn’t the only program that’s hooked into Time Machine’s magic. iPhoto, Address Book, and Mail work with Time Machine, too. Other software companies can also revise their own applications to work with it.

In other words, if you want to recover certain photos, addresses, or email messages that have been deleted, you don’t start in the Finder; you start in iPhoto, Address Book, or Mail.

Then click the Time Machine icon on the Dock. Once again, you enter the starry recovery mode—but this time, you’re facing a strange, disembodied, stripped-down copy of iPhoto, Address Book, or Mail (Figure 6-15).

You’re ready to find your missing data. Click the Jump Back arrow to open the most recent version of your photo library, address book file, or email stash that’s different from what you’ve got now. (You can also use the timeline on the right if you remember the date when things went wrong.)

At this point, you can select individual photos (or albums, or events), Address Book entries, or email messages to restore; just click the Restore button.

Often, though, you’d rather reinstate the entire iPhoto library, Address Book file, or email collection from the backup. That’s what the Restore All button is for.

If you click it, the experience is slightly different. iPhoto asks if you’re sure you want to replace your iPhoto library. Address Book may discover a lot of duplicate name-and-address entries and invite you to step through them, deciding which ones “win” (the old or the new).

Every hard drive will die at some point. You just hope it won’t happen while you own the computer.

But the great gods of technology have a mean-spirited sense of humor, and hard drives do die. But you, as a Time Machine aficionado, won’t care. You’ll just repair or replace the hard drive, and then proceed as follows:

Beware, however: Restoring your earlier version also erases any files you’ve created or changed since you installed the update. Back them up manually before you proceed!

Then follow the steps above; when you’re asked to choose a backup to restore, choose the most recent one. When it’s all over, copy the latest files (the ones that you manually backed up) back onto the hard drive.

Time Machine is a very different kind of backup program, and a real departure for longtime Mac addicts. A few questions, therefore, are bound to come up—like these:

First, FileVault (FileVault). If you’ve encrypted your Home folder using FileVault, then Time Machine can back up your Home folder only when you’ve logged out. And when things go wrong, it can recover only your entire Home folder (not individual files or folders). It scarcely seems worth the trouble.

Finally, remember that Time Machine backs up entire files at a time—not pieces of files. If you edit huge, multigigabyte files like video files, therefore, keep in mind that each giant file gets recopied to the backup drive every time you change it. That is, one 2-gig video file that you work on all day could wind up occupying 48 gigabytes on the backup drive by the end of the day. Consider adding these files to the exclusion list, as described above.