It will take 17 seconds and 2 seconds for a USB 2.0 and a USB 3.0 drive transfer a file size of 1GB transfer respectively.
USB 2.0 has a transfer rate of 480 megabits per second.
Therefore the transfer rate of USB 2.0 = (480 * 10⁶ bits per second) / (8 bits per byte) = 60 MBps (megabytes per second)..
Hence the time taken to transfer 1 GB (1024 MB) of data using USB 2.0 = 1024 MB / 60 MBps ≅ 17 seconds
USB 3.0 has a transfer rate of 5 gigabits per second.
Therefore the transfer rate of USB 3.0 = (5 * 10⁹ bits per second) / (8 bits per byte) = 625 MBps (megabytes per second)..
Hence the time taken to transfer 1 GB (1024 MB) of data using USB 3.0 = 1024 MB / 625 MBps ≅ 2 seconds
Hence, it will take 17 seconds and 2 seconds for a USB 2.0 and a USB 3.0 drive transfer a file size of 1GB transfer respectively.
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