記憶體容量的單位
 

Byte [a letter or number]
KB (Kilobyte) [4 manuscript pages]
MB (Megabyte) [a novel]
GB (Gigabyte) [20 encyclopedia 'sets']
TB (Terabyte):1trillion [small research library]
PB (Petabyte):thousand trillion [1/2 of all U.S. research libraries]
EB (Exabyte) :million trillion [5 x all printed material, ever]
ZB (Zettabyte):billion trillion [all the grains of sand?]
YB (Yottabyte):trillion trillion [angels dancing on head of pin?]

應該還差最小單位bit,
這應該是儲存容量的單位,硬碟容量;檔案大小,也都是
用這各單位計算方式表示.