Index

TECHNICAL SUPPORT FUNDAMENTALS

  1. INTRO -> IT
    1. HISTORY OF COMPUTING
    2. DIGITAL LOGIC
    3. COMPUTER ARCHITECTURE LAYER
  2. HARDWARE
    1. The Modern Computer
    2. MOBILE DEVICES
    3. PERIPHERALS
    4. STARTING IT UP
  3. OPERATING SYSTEM
    1. INTO KERNEL
    2. USER SPACE
    3. INSTALLING OS
  4. NETWORKING
    1. INTERNET
  5. SOFTWARE
  6. TROUBLESHOOTING

MOBILE DEVICES

Integrated components.
System on a chip SoC
CPU RAM and Storage
less power consumption

can be peripheral
Standalone like fitness band

USB-C
mini usb
micro usb
mini display port

Rechargeable Batteries
Charge Cycle : One full charge and discharge

Portable power adapters instead of PSU
safe operating temperature
batteries can swell rupture explode
Li ion batteries

Slow down -> battery life low
https://www.apple.com/batteries/maximizing-performance/
https://support.google.com/android/answer/7664358