Teach Yourself VISUALLY MacBook Pro & MacBook Air. Guy Hart-Davis

      All the MacBook models include an analog/digital audio in/out port that enables you to connect an external microphone, headphones, or speakers. Beyond that, some MacBook Pro models feature MagSafe charging ports, an HDMI graphics port, and an SDXC card slot.

       Analog/Digital Audio In/Out

      This port looks like a standard analog headphone port, but it works for both analog and digital audio and combines audio output and audio input. For analog audio output, simply connect headphones or analog speakers. For digital audio output, use a TOSLINK cable to connect digital audio equipment, such as surround-sound speakers. For audio input, connect a microphone or other sound input device.

       MagSafe 3 Port

      Connect the MacBook’s power adapter to this port. The MagSafe 3 connector attaches magnetically, providing a secure connection but detaching easily if force is applied — for example, if someone’s foot snags the power cord.

       SDXC Card Slot

      You can insert SDHC, SDXC, and other types of SD cards here so you can store files or transfer files to or from your MacBook.

      The SDXC card slot accepts regular-size SD cards, which are 32mm × 24mm × 2.1mm. To use a miniSD card or a microSD card, get an adapter.

      Standard-size SDXC cards protrude from the SDXC slot. This makes them easy to remove but even easier to damage if you leave them in the slot while transporting your MacBook. If you need to leave an SD card in the slot, get a microSD card and a low-profile adapter such as those made by BaseQi (www.baseqi.com).

       USB-C Ports

      The MacBook Pro models include USB-C ports for connecting your USB devices.

       HDMI Port

      The 16-inch MacBook Pro includes one HDMI port for connecting an external display of up to 4K resolution.

The current MacBook Air and MacBook Pro models include a row of hardware function keys above the keyboard. These keys are marked F1 through F12; each has a dedicated function, such as changing screen brightness or controlling media playback.

      Most MacBook Pro models produced from October 2016 to November 2020 have the Touch Bar instead of the hardware function keys. The Touch Bar is a multitouch control strip whose contents change to suit the current app or selection. While useful in some apps, the Touch Bar proved unpopular with professional users, many of whom use the function keys extensively.

      Meet Your MacBook’s Keyboard

       Brightness

      Press to decrease your screen’s brightness or to increase it.

       Mission Control

      Press to open Mission Control so you can quickly move between working spaces.

       Launchpad

      Press to open or close Launchpad.

       Keyboard Backlight Brightness

      Press to decrease the brightness of the keyboard backlighting, or press to increase it.

       Previous/Rewind

      Press to move to the previous item or rewind in Music and other applications.

       Play/Pause

      Press to play or pause Music and other applications.

       Next/Fast-Forward

      Press to move to the next item or fast-forward in Music and other applications.

       Volume

      Press to mute your MacBook, to turn the volume down, and to turn it up.

       Power Button

      Press the Power button to turn on your MacBook; press and hold the Power button to force your MacBook to turn off.

       Alternate Function Key

      Hold down the Alternate Function key while pressing a function key to form the alternate task.

       Modifier Keys

      Macs and macOS use four modifier keys that you press to enter capital letters or symbols or to invoke keyboard shortcuts. As usual, you press Shift () to type capital

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