A removable disk refers to a storage device that can be easily disconnected from a computer or other electronic device. Removable disks are typically used for data storage and transfer, and they can be transported and used in different devices.
Examples of removable disks include USB flash drives, external hard drives, SD cards, CD/DVDs, and floppy disks (although these are less commonly used today). These disks are designed to be portable, allowing users to transfer data from one computer to another, store backup copies of important files, or carry data with them while on the go.
Removable disks are usually connected to a computer or other device via a USB, eSATA, or other interface, and they can be easily unplugged or ejected when they are no longer needed. They come in various storage capacities, ranging from a few gigabytes (GB) to several terabytes (TB), depending on the type and model.