Question: 1 mb per second is how fast?
Answer: One byte equals 8 bits, so 1 megabyte (MB) equals 8 megabits. If you have a 1 megabit-per-second connection, a 1MB file will take eight seconds to download. On a 1 Mbps connection, an MP3 file, which might measure about 6MB, will take about 48 seconds to download.