Arizona State University (ASU) CSE100 Principles of Programming with C++ Midterm 1 Practice Exam

Volatile memory is characterized by its ability to lose all stored data when the power supply is interrupted. This is a key distinction that helps define its role in computing. Volatile memory, such as RAM (Random Access Memory), is indeed faster than non-volatile memory, making it suitable for tasks where speed is critical, such as running applications and processing data in real-time.

In distinguishing between volatile and non-volatile memory types, volatile memory is primarily used for temporary storage of data that the system needs quick access to while it is powered on, which explains why it is faster. Non-volatile memory, such as hard drives or solid-state drives, retains data even when the power is turned off, making it ideal for long-term storage.

In summary, the defining feature of volatile memory is its speed, which is advantageous for short-term data access—this capability is why it is crucial in system performance, especially during active operations.