The difference between MB and Mb

Mb (full name Mbps) is a unit used by the telecommunications sector to measure network bandwidth, meaning megabits per second. MB (Mbytes) is the unit of megabytes for computer file capacity.  
Detailed explanation of bandwidth unit: bps is the abbreviation of bit Per Second, translated into Chinese is bit per second, which means how many bits are transmitted per second (bit).  
   The relationship between bit and byte:  
Detailed storage unit: 80G hard disk. G is the unit of hard disk capacity and also the unit of storage. The smallest storage unit is Byte. For storage units, there are the following units, GB, MB, and KB. Then the conversion relationship between the three is: 1GB=1024MB, 1MB=1024KB, 1KB=1024Bytes.  
The relationship between Kb and KB: We know from the computer principle that the smallest storage unit of a computer is a byte. A byte is composed of eight binary bits. Therefore, we can think that a byte is composed of 8 bits, or that the space occupied by a byte and eight bits is the same. Because, when we use a 100Mb bandwidth network download, the theoretical speed should be 100 divided by 8 equal to 12.5MB.  
bps: bits per second, usually bps is used for serial bus devices, such as serial ports, USB ports, and Ethernet buses.  
Bps: Bytes per second, usually Bps is used as a unit for parallel bus devices, such as parallel ports, IDE hard drives, etc. The bandwidth is 1M, which is 1024K bits, that is, 16 64K bit  
disks are 1M, which is 1024K bytes (1M = 1024K = 1024*1024 byte =1024*1024 * 8bit ). Also: 100M LAN is measured in bps, when used in software When downloading, the download tool is generally calculated in Bps