Computer Memory

Computers need memory to store information. Memory is like a computer's brain for holding data. There are different kinds of memory for different jobs. Some memory is fast but forgets when the power turns off.

Short-Term Memory (RAM)

RAM stands for Random Access Memory. It holds information the computer is using right now. When you open a game, it loads into RAM so it runs fast. When you turn off the computer, RAM forgets everything. That is why you need to save your work.

Long-Term Storage

Hard drives and solid-state drives store files for a long time. Your photos, videos, and games are saved here. This memory keeps your data even when the computer is off. USB flash drives are small and can carry files between computers. Memory cards in cameras and phones work the same way.

Fun Facts

• A single USB flash drive today can hold more data than all the computers in the world could in 1960.
• The first hard drive was made in 1956 and was as big as two refrigerators.
• RAM is about 100 times faster than a hard drive.

Did You Know?

Computer memory is measured in bytes. A gigabyte is about one billion bytes. That is enough to store about 250 songs!