System of Measurement a System of Measurement is a collection of units of measurement and rules relating them to each other Systems of Measurement Bel (B) Imperial System Metric System - International System of Units (SI Units) Storage Units (bit - nibble - byte／octet - kilobyte／kibibyte - megabyte／mebibyte - gigabyte／gibibyte - terabyte／tebibyte - petabyte／pebibyte - exabyte／exbibyte - zettabyte／zebibyte - yottabyte／yobibyte)