Memory

Memory

1. Primary

   • RAM
     • Volatile
     • Read/Write
     • Stores running programs
   • ROM
     • Non-Volatile
     • Read Only
     • Stores boot-up instructions
   • Cache
     • CPU
       • Fast to access
       • Small capacity
     • 3 Levels
       • Level 1
         • Fastest
         • Smallest capacity
       • Level 3
         • Largest capacity
         • Slowest
   • Virtual Memory
     • Used when RAM is full
       • Pages transferred between RAM and VM
     • Hard Drive
       • Slow to access
       • Larger capacity

2. Secondary