Memory

Memory

1. Instructions in ROM

   • Boot up sequence
   • Virus attacks (very unlikely)
   • Cannot be accidentally overwritten

2. Flash Memory

   • Advantages
     • It is good as a secondary storage method, like Floppy Disks, Hard Disks and DVD's
     • Can write to it millions of times
     • Reliable Storage
     • Low cost
     • Light weight meaning it is easily portable
   • Disadvantages
     • Data can only be stored in chunks, Typically 512 or 2046 bytes
     • Isn't good as main memory
     • Eventually it will Fail and important files may get lost
   • Types of Flash Memory
     • Memory Sticks
     • Camera Memory Cards (SD Cards)
     • Solid States Drives