Primary and Secondary storage

Primary and Secondary storage

1. Key factors in Primary+Secondary Storage

   • Capacity- Capacity is how much space there is to store files
   • Speed- Speed is how quickly the computer is able to read data
   • Portability-Portability is how easily the storage can be removed/unplugged and carried away
   • Durability- Durability is how easily damaged/destroyed the device is
   • Reliability- Reliability is how long the device will last and how strong it is

2. Types of Primary+Secondary Storage

   • ROM-(Read-Only-Memory) ROM contains a computer's boot up protocol
   • RAM-(Random-Access-Memory) RAM contains then data and programs that are in use
   • Virtual Memory- Virtual Memory is when the RAM is full, the unused programs are moved to the hard drive to make space

3. How do the memory types work?

   • Optical Memory- Optical memory uses lasers to read and write data off of CD's and DVD's
   • Flash Memory- Flash memory is the memory type used by Solid State Drive (SSDs) and reads data off of USB drives and SD cards. The data is derived from solid-state storage
   • Magnetic Memory- Magnetic memory reads data off of traditional hard drives and floppy disks