Secondary storage

Secondary storage

1. RAM

   • •RAM is Random Access Memory.
   • •RAM is the short term memory of the computer.
   • Volatile – Is used to describe the memory component that deletes its self once it has turned off.
   • •RAM stores data for the software programs that are currently open on the computer.
   • •Modern RAM – 4 to 16 Gigabytes, GB.

2. ROM

   • Non-volatile – it doesn’t Requires power to keep its storage
   • •ROM is READ Only Memory. The CPU will not WRITE to ROM. •ROM is long term memory for the BIOS.
   • •Stores the BIOS – Basic Input Output System
   • •The BIOS contains programs that allow the computer Hardware (the components) to run correctly each time the computer is powered on.

3. Solid State drive

   • Faster than magnetic drives
   • Lasts longer because no moving parts
   • More expensive than magnetic drives

4. magnetic

   • Cheap, but huge storage
   • Can break more easier than solid state because of moving parts

5. Optical

   • Small and easy to move around
   • Comes in different types (CD, DVD, Blu-ray, RW)
   • Can be scratched easily