Mobile Device Accessories – CompTIA A+ 220-1101 – 1.3
Headsets
-Hands-free audio: earphones and microphone -Wired: USB connections are common, connects to 3.5 mm TRRS (tip-ring-ring-sleeve) connector -Analog audio jack -iPhone can use Lightning port -Wireless: bluetooth
Trackpad (Touchpad)
-Replace the mouse -useful in tight working areas -common on laptops -external options: battery powered, bluetooth connected -drag and tap: or use multiple finger input for right-clicking, zooming, and window control
Active Stylus
• Digital stylus - A more advanced writing tool • The stylus communicates directly to the device - Pressure sensitivity, programmable buttons, etc. • Must be compatible with the tablet - e.g., Apple iPad uses an Apple Pencil
Docking station
• Docking station • Use external keyboard and mouse • Extend existing laptop interfaces • Add additional functionality • Desktop adapter cards • Avoid cable issues
Camera/webcam
• Internal or external - Commonly external on desktops, internal on laptops/tablets/phones • Accessible from multimedia applications, photo utilities,and video conferencing - Real-time video communication
Speakers
• Mobile audio - Battery powered • Wireless connection - Bluetooth link • Stereo sound - Small package
Port replicator
• Port replicator - Similar to a docking station - Does not commonly have an expansion card option - Usually connects using USB
Touch pens
• Touchscreen pen / touch screen stylus / capacitive stylus - Activate the interface without actually touching it • Handwriting - Note taking, signatures • Precise selection - Easier to see the screen
Drawing pad
• Use an active stylus with an external digitizer - Very precise input
