A+ 220-1002: Day 13: Portable & Mobile Computing

  1. A+ Certification
  2. A+ 220-1001: Day 1: Intro, Resources & the Test
  3. A+ 220-1001: Day 2: CPUs
  4. A+ 220-1001: Day 3: RAM
  5. A+ 220-1001: Day 4: Firmware, Motherboards & Power Supplies
  6. A+ 220-1001: Day 5: Disks & Mass Storage
  7. A+ 220-1001: Day 6: Peripherals & PC Builds
  8. A+ 220-1001: Day 7: OS Operations, User Management & OS Maintenance
  9. A+ 220-1001: Day 8: Users, Permissions and System Management
  10. A+ 220-1002: Day 9: The Command Line & OS Troubleshooting
  11. A+ 220-1002: Day 10: Displays & Networking Basics
  12. A+ 220-1002: Day 11: LANs: Ethernet & WiFi
  13. A+ 220-1002: Day 12: The Internet & Virtualization
  14. A+ 220-1002: Day 13: Portable & Mobile Computing
  15. A+ 220-1002: Day 14: Mobile Administration & Printing
  16. A+ 220-1002: Day 15: Security & Operations
  17. A+ 220-1002: Day 16: Review & Test Preparation

Portable Devices

Info
When CompTIA says “portable devices” or “portable computing” they mean laptops (or notebooks).

Types of Laptops

  • Desktop replacements
  • Thin-and-lights
  • Gaming laptops
  • Chromebooks
  • 2-in-1s
  • Convertibles
  • Hybrids

Input Devices

  • Keyboards
  • Trackballs
  • TrackPoint / point sticks
  • Touchpads (possibly multi-touch)
  • Webcams
  • Microphones

Displays

Don’t forget the “VGA Cutoff Switch”, “display toggle function keys”, “display options switch” or any similar term for a function key combination (like Function – F10) that toggles through the connected displays.

Older laptop displays used an AC-powered CCFL (cold cathode florescent lamp), which required an Inverter to change internal DC to AC. This inverter, and the florescent tube, are major points of failure..

Newer laptops use LED-backlit LCD panels.

OLED panels combine the LEDs and LCDs into single components made with organic materials.

Aspect Ratio

  • 4:3
  • 16:10
  • 16:9

Networking

Note the possibility of an external switch for WiFi!

  • WiFi
  • Bluetooth (BT)
  • Wired Ethernet

External IO Connectors

  • PCMCIA cards (or “PC cards”, not to be confused with PCI slot cards used in desktops
  • ExpressCard (ExpressCard/34 and ExpressCard/54)
  • USB
  • Thunderbolt
  • FireWire
  • eSATA

Docks, Bays etc.

  • Docking Stations
  • Port Replicators
  • USB/Thunderbolt port adapters

Batteries

  • NiCad (Ni-MH, Ni-CD)
  • Lithium-ion
  • Lithium polymer (Li-Po)
  • Swollen

Battery recalibration

Drives

  • Disk drives (2.5″ and rare 1.8″)
  • SSDs (generally people mean 2.5″ form-factor SSDs when they say this)
  • M-2 slots (mSATA or NVMe) (also used for WiFi cards etc.)

Mobile computing

When CompTIA talks about “mobile devices” they generally mean wireless phones and tablets.

Textbook Time

Chapters 23 and 24