RAM:
- It stands for Random Access Memory.
- Data can Read/Write randomly.
- RAM is used for storage of active programs and data.
- It is a temporary memory.
- It is also called Volatile memory (it will lose all stored data if power is turned off).
- It increases the processing speed of a computer.
- Also known as Primary memory.
- Hold instructions or data.
- RAM is available in different sizes.
- 32 MB, 64 MB, 128 MB, 256 MB (etc)
- Two types are
- i. Static RAM
- ii. Dynamic RAM
ROM:
- It Stands for Read Only Memory.
- Holds data or instructions permanently so it is also called permanent memory.
- Data can only Read.
- It is also called Non-Volatile memory (it will not lose stored data if power is turned off).
- User can’t change it directly.
- Instructions are stored on it during manufacturing.
- Types are
- PROM (Programmable Read Only Memory)
- EPROM (Erasable Programmable Read Only Memory)
- Examples: BIOS (Basic Input/Output System)