How is the data read from the device of GB and MB?

Data is read from devices in gigabytes (GB) and megabytes (MB) by using binary measurement units, where 1 GB equals 1,024 MB. Devices access data through their storage systems, which interpret binary code into readable information. The operating system or software typically displays this data size in user-friendly terms, allowing users to understand how much data is available or used. The read speeds can vary based on the device type, such as SSDs or HDDs, affecting how quickly data can be accessed and transferred.