difference between ROM and RAM.

**ROM (Read-Only Memory):**

1. **Volatility:** Non-volatile; retains data even when power is off.

2. **Data Modification:** Data is permanently written during manufacturing and cannot be easily modified.

3. **Function:** Stores firmware and essential system software.

4. **Speed:** Typically slower compared to RAM.

**RAM (Random Access Memory):**

1. **Volatility:** Volatile; loses data when power is off.

2. **Data Modification:** Read and write operations are fast, and data can be easily modified.

3. **Function:** Provides temporary storage for data and instructions that the CPU needs while performing tasks.

4. **Speed:** Generally faster compared to ROM.