Barbara Boyd

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.

Sooner or later in your professional life, you’ll have to give a really important presentation. By focusing on several distinct and unique aspects of creating a presentation (topic selection, audience analysis, visual design, and delivery technology and techniques), you can develop the skills to give innovative, stimulating presentations with consistently positive results.

Location Services is auxiliary to a lot of apps on the iPhone — Camera uses it to geotag photos, that is to add information about where the photo was taken in addition to putting a time and date stamp on it, and Reminders uses it to alert you to a task when you arrive at or leave a specified address. For Maps and Compass, however, Location Services is essential in order to get the most out of the app.

When you import or access contacts from different sources on your iPhone, the result could be multiple information records for one contact. Unify a contact by linking multiple records that have the same name. A unified contact doesn't merge the information but does display all the information for one person on one record.

With increased travel costs and clashing schedules, you may have trouble reaching the innovative presentation site or find that a key player in the decision-making process can’t attend. Alternatively, you may want to distribute a recording of your presentation and reach a nationwide or international audience in different time zones.