Joe Hutsko

For information about you such as name and address that remains constant, you iPhone’s Safari app’s AutoFill feature automatically fills in common fields with your personal information with a single tap instead of requiring you to fill in those fields individually. Safari can also keep track of user names and passwords and credit card information.

When you first turn on your Mac (or install an upgrade to the operating system), a series of questions and prompts appear, including a prompt to sign in to your Apple ID account or create a new Apple ID.An Apple ID identifies you and your devices in all things Apple that you do: registering new products, purchasing media and apps from the iTunes Store, the Book Store, and the App Store, as well as signing in to your iCloud account.

iCloud remotely stores and syncs data that you access from various devices — your Mac and other Apple devices, such as iPhones, iPads, and iPods, and PCs running Windows. Sign in to the same iCloud account on different devices, and the data for activated apps syncs; that is, you find the same data on all your devices, and when you make a change on one device, it shows up on the others.

Safari and iCloud have terrific built-in features that help you remember user names and passwords and credit card information. And Safari has security and privacy features to keep that personal information to yourself — or to your Mac. Here, we tell you how to use AutoFill so Safari remembers passwords for you, and then we explain how to keep your information safe.

Many people consider passwords to be less than ideal for security. To begin with, you have to remember them. The only sure way to make sure you don’t forget or lose your password is to write it down and keep that piece of paper (or whatever you wrote on) safe.There’s a better way if you have a current MacBook Pro or MacBook Air that supports Touch ID.

iCloud is Apple's over-the-air syncing, sharing, and storage service you have access to with your iPhone. Your data is stored in a remote Apple location, somewhere in North Carolina (at the time of writing), which is a good thing because if disaster or thieves strike your home and your computer breaks or disappears, your data is safe and sound.

Technology is constantly changing. The relationship between iPhones and computers is no different. Used to be that you had one computer every two and a half households and the only music you heard through the phone was your father singing “Happy Birthday” to you. Today, you probably have a computer at home and one at work, and maybe a notebook computer, too.

After you’ve produced a movie on your iPhone, you may want to create a trailer to tease and entice viewers before they see the final cut. Here’s a quick run-through of how to make a trailer: Tap the New Project (+) button, and then tap Trailer. Scroll through the styles, and tap the Play button to preview the trailer style.