4.2.2: understand the function of different types of main memory (RAM, ROM, cache)
Keyword | Definition |
---|---|
Cache | small amount of very fast memory that sits between the CPU and main memory to store frequently accessed data and instructions |
Non volatile | a type of storage where the data is stored safely even when the power is turned off |
Random Access Memory | Volatile storage, used to store instructions and data whilst a program is running. Otherwise known as main memory |
Read Only Memory | Small amount of non volatile storage, used to store instructions and data tell the computer what to do when it first switches on. |
Volatile | a type of storage where the data is lost when the power is turned off |