Portable means able to be easily carried or moved from one place to another. A portable speaker is small and light enough to take to the park. A portable gaming device fits in your backpack. Portable furniture can be folded up and transported to a new location.

Before portable electronics, people relied on larger, stationary devices: massive desktop computers instead of laptops, record players instead of MP3 players, and landline telephones tethered to walls instead of cell phones.

Something truly portable needs to be both movable and practical. A textbook is technically portable, but hauling ten of them around wouldn't feel very convenient. That's why students prefer lightweight tablets or e-readers loaded with digital books.

Portability has transformed how people work, learn, and entertain themselves. A musician with a portable keyboard can practice anywhere. A scientist with a portable laboratory kit can conduct experiments in the field rather than only in a lab. When something becomes portable, it becomes accessible in new ways, letting people bring their tools, entertainment, and work wherever they need to go.