Non-Volatile Memory

• Saves data even after the device is off
• Does not require constant power to save
• Examples:
  • Hard drives, SSD, and M.2 NVME

Volatile Memory

• Does not save after the device is off
• Normally requires constant power to save
• Examples:
  • RAM (Random Access Memory)

RAM

• Random Access Memory
• Serves as short term storage for things like documents and tabs
• Types
  • Desktop RAM
    • DIMM
    • Dual inline memory module
  • Laptop RAM
    • SODIMM
    • UNIDIMM

How they work together

• Data Transfer
  • Method: Data bus
  • Fast Transfer: North Bridge
  • Slow Transfer: South Bridge
• North Bridge usually has RAM
• South Bridge usually has Storage (2.3 Notes)
• CPU Cache
  • Type of RAM: Static RAM
  • Speed: Fastest
  • Volatility: Most

Key Takeaways

• Static RAM (CPU Cache)
  • Location: Directly Attached (Inside CPU)
  • Speed: Fastest
  • Volatility: Most
• Dynamic RAM
  • Communication: With CPU over data bus
  • Speed: Second Fastest
  • Volatility: Very