What is the largest unit of storage called?

The largest unit of storage among the options provided is indeed called a Terabyte. A terabyte (TB) is equivalent to 1,024 gigabytes (GB) or about 1 trillion bytes, making it a significant measure for data storage capacity. In the hierarchy of digital storage units, it follows the sequence of bytes, kilobytes, megabytes, gigabytes, and then terabytes, indicating that as you move up this scale, the amount of data that can be stored increases exponentially. This unit is commonly used in contexts such as hard drives, SSDs, and cloud storage, where large quantities of data need to be managed efficiently.