iPhone All-in-One For Dummies. Hutsko Joe

Чтение книги онлайн.

СКАЧАТЬ style="font-size:15px;">      ✔ Headset jack

      ✔ Home button (with fingerprint sensor on iPhone models with Touch ID)

       What you don’t see can help you

      Your iPhone has antennae and sensors to support the functions of the apps you use. One antenna is the metal band around the outside that connects to the cellular network. The iPhone actually switches between two antennae to receive and transmit, which increases data transfer speeds and call quality. Here’s what those visible and not-so-visible parts do:

      ✔ GPS and GLONASS: Finds your location, gives you directions in Maps, and geotags your photos. In Book IV, Chapter 1, we explain how geotagging identifies your location when you take a photo.

      ✔ Wi-Fi: Connects to available Wi-Fi networks.

      ✔ Cellular antenna: Connects you to a selection of the following networks: LTE, GSM/EDGE, CDMA EV-DO, UMTS/HSPA +/DC_HSDPA, 2G, 3G, or 4G networks. We explain the different types of cellular networks, and what all these nerdy terms and acronyms mean, in Book I, Chapter 2.

      ✔ Three-axis gyroscope: Used to find your location when GPS or GLONASS aren’t accessible.

      ✔ Magnetic-field sensor: Positions the compass.

      ✔ Proximity sensor: Turns the touchscreen off when you hold the phone close to your ear, so you don’t accidentally tap the mute button or call another number while you’re in the middle of a conversation. As soon as you move iPhone a few 16ths of an inch from your head, the screen is activated.

      ✔ Tilt sensor: Senses motion, which is particularly useful when playing games that involve driving or flying.

      ✔ Accelerometer: Allows for landscape display.

      ✔ Bluetooth: Connects to other Bluetooth 4.0–enabled devices.

      ✔ Ambient light sensor: Adjusts the screen when you’re using your iPhone in low- or bright-light situations.

      ✔ Fingerprint identity sensor (models with Touch ID): Recognizes authorized fingers pressed to the Home button to unlock iPhone and make purchases in the iTunes and Apps Stores, as well as iTunes U and Newsstand. Third-party apps may use this sensor to authorize actions, too.

      ✔ NFC antenna (iPhone 6 and 6 Plus): In conjunction with Apple Pay, this antenna allows you to use your iPhone to charge purchases to a credit card already associated with your iTunes account, or another card you add, simply by pointing your iPhone at an NFC reader, and then authorizing the purchase with Touch ID.

      ✔ Barometer (iPhone 6 and 6 Plus): Measures relative elevation, so, for example, the Health app can tell you not only the number of steps you took but the distance you ran and how many flights of stairs you climbed.

      ✔

Moisture sensor: Lets Apple know if your iPhone has gone for a swim. If you purchased AppleCare+, Apple may replace or repair your phone for up to two accidents after you pay a deductible. Learn about AppleCare in Book I, Chapter 5.

       Other stuff in the box

      Your iPhone comes with a few nice accessories, too. Here’s what you’ll find when you open the box:

      ✔ EarPods: Stereo headphones with a built-in microphone and volume control buttons.

      ✔ USB cable connector: Connects your iPhone to a USB port on your computer, in your car, and on the USB power adapter. iPhone 5 and later models have the 9-pin reversible Lightning connector, whereas iPhone 4s and earlier have a 30-pin, one-way Dock connector.

      ✔ USB power adapter: Connects to the USB cable connector and plugs into an outlet to charge your iPhone’s battery.

      ✔ Finger Tips guide: Apple’s quick guide to iPhone functions and features.

      ✔ Product info: Legal and technical information.

Considering iPhone Carriers and Configurations

      In the United States, four national carriers support iPhone – AT&T, Sprint, T-Mobile, and Verizon – as well as smaller regional carriers. That’s made a situation that is both competitive and confusing for the consumer. In Europe, Vodafone is popular, although many countries also have country-specific carriers with competitive pricing.

      Unlocked iPhones (iPhones you purchase outright without a service contract) work with carriers that use the GSM standard (see the following paragraph). In the United States, AT&T, T-Mobile, and 30 or so regional carriers use GSM, as do most of the carriers outside the U.S. Although Verizon CDMA phones are unlocked for international use, a Sprint customer in good standing can request that his CDMA carrier unlock his iPhone so it can access the GSM networks overseas, but nonetheless remains tied to the national and roaming costs associated with the cellular service contract.

      

Your iPhone doesn’t only make phone calls. In fact, many of the things you do with your iPhone use the Internet, which you connect to via either Wi-Fi or a cellular data connection. Many carriers boast an LTE (Long Term Evolution) cellular data connection, which is sometimes referred to as 4G (for fourth-generation); it’s designed to use different radio frequencies at higher speeds. The iPhone 5c can access up to 13 LTE bands and iPhone 6 accesses between 16 and 20 LTE bands (depending on the carrier), giving greater possibility of finding LTE wherever you are. Without getting into a bunch of technical gobbledygook, LTE means your web page, email, video streaming, and any other stuff you do online works faster – sometimes even faster than the Wi-Fi connection depending on your location. In North America, Europe, Japan, Russia, India, Australia, and Brazil, you find pretty good coverage in metropolitan areas, whereas in China, Mexico, and some emerging African and South American countries, 4G LTE support is in the works.

      With so many different plans available from multiple national and regional carriers, we can’t take responsibility for advising you on which to choose. We can, however, give you some things to think about – and questions to ask prospective providers – when choosing. Here are a few things to consider so you can compare plans from different carriers and make an informed decision:

      ✔ How much time do you spend on the phone? Most plans offer unlimited calling, so this question is almost moot. If you’re considering a plan that offers a set number of minutes, consider how you use your phone: Do you make many calls or just check in now and then? Three hundred and sixty minutes for a month is 12 minutes a day, whereas 1,000 minutes is just over a half-hour a day. If you’re thinking about replacing your landline with a cellphone, an unlimited calling plan may be a better choice.

      ✔ Who do you call? Some plans offer a you-and-me or family discount for one number, or a group of numbers, that you call more than any other. Some offer unlimited mobile-to-mobile calls, even to other carriers.

      ✔ Where do you use your phone? If you travel around the country, you probably want a call plan with nationwide coverage.

      ✔ Do СКАЧАТЬ