Main memory

Main memory

1. RAM

   • Stores information temporarily that can only be read. Ones the computer is turned off the information is lost.
     • Volatile

2. ROM

   • Ones information is written on the ROM than it can not be removed but only read. The information is kept even if the computer is turned off.
     • Non-volatile

3. Cache

   • High-speed RAM that access information from the main memory

4. Virtual Memory

   • It allows physical storage to transfer temporarily to the main memory if there is not enough storage on the RAM
     • Disadvantage: Opening the storage in main memory is much takes longer.