Final answer:
S3 charges for the storage space used based on the size of the stored objects in gigabytes (GB). One GB consists of 1024 MB, and an MB is 1024 KB. The unit for one million bytes is a megabyte (MB).
Step-by-step explanation:
Amazon S3, which is an object storage service, primarily charges for the gigabytes (GB) of storage space used by your stored objects. The cost is calculated based on the size of the files you have stored, measured in gigabytes. A gigabyte is a unit of digital information storage that consists of 1024 megabytes (MB), where one MB is equal to 1024 kilobytes (KB).
The question of what unit is used for one million bytes relates to the unit known as a megabyte (MB). Since one megabyte is approximately one million bytes, it is the correct answer to what is the unit for one million bytes in terms of computer memory.