1.2 memory 1.3 storage

1.2 memory 1.3 storage

1. why is it needed ?

   • secondary storage
     • charecteristics
       • cost
       • reliability
       • durability
       • portability
       • speed
       • capacity
     • optical
       • cd
       • dvd
     • magnetic
       • tape
       • hdd
     • solid state
       • ssd
       • usb stick

2. primary storage

   • why is it needed ?
     • to store all of the files that you have saved or downloaded
   • virtual memory
   • ram
   • rom
     • bootstrap loader
   • flash memory

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