Bits that byte your count

byte and bit

Bits and bytes count

Ever wondered why the hard disk says X GB, but always stores less than X GB. A good read which blew my mind.

b = bit.register or register size/widthas of today this is the basic unit of computing
B = byte or 8 bits or 8bregister or register size.
kb = kilobit or 1000 bitsdial up speed or baud ratedial up speed or baud rate
kB = kilobyte or 1000 bytesstorage unit for diskskB notice the 'k' is lowercase signifies the kilo and 'B' signified the byte 1000 bytes. reason for 'actual' disk storage always being lesser than the marketing size mentioned. A hard disk of 1 kB would store 1000 bytes and not 1024 bytes.
Kb = Kibit = kibibit or 1024 bytes.notice the uppercase 'K'
KB = KiB = kibibyte or 1024 bytesKB = KiB = kibibyte or 1024 bytes

Mb = megabit = 1000^2 bits or 125 kB network bandwidth Mb/s is used for network bandwidth. Notice the 'b' i.e
1 Mb/s would mean 1000^2 bits per second
which is 1000000 bits per second
which is (1000000/8) bytes per second
which is 125000 bytes per second
which is 125kB per second
which is *mind blown*
MB = megabyte = 1000^2 bytes HDD bandwidthMB/s is used for disk bandwidth.
MiB = mebibyte = 1024^2 bytesOften referred to as MB or Megabyte for memory.
mb = millibits = 0.001 bitsnever use correctly.
mB = millibytes = 0.008 bitscould be used for compression, but isn't