Flash Memory

Types of Flash Memory

  • SD
  • Micro SD
  • Memory Stick

Hard Disk Drive (HDD)

  • Requires more power
  • Bigger in physical size
  • Slower (because of moving parts)
  • Cheeper per MB of memory


  • Used for tablets and smart phones
  • Used for storage for servers
  • Small and light
  • Different memroy sizes available.

Solid state media

Up and coming technology

  • Faster data connection
  • Requires more power
  • Larger physical and meory size

USB Stick

  • Relyability
  • Lower power
  • Larger size
  • Physically lighter

Floppy Disks

  • Smaller memory size
  • Larger physical size
  • Slow due to design