Delete from a disk is a computer term that refers to the process of erasing data from a storage device, such as a hard drive or a USB flash drive. This process is often used to remove unwanted files or to free up space on the device. The term 'ERASE' is often used interchangeably with 'DELETE, ' but they are not the same. Erasing data is a more secure way of removing files, as it overwrites the data multiple times, making it much harder to recover.