1 byte = 8 bits
1 KB (Kilobyte) = 1024 byte
1 MB (Megabyte) = 1024 KB (Kilobyte)
1 GB (Gigabyte) = 1024 MB (Megabyte)
and more........
Mbps = Mbps is Megabyte per second and it refer to the “speed” of data transfer rate
MB = MB is Megabyte and is an amount
A lot of customers who use Maxis and Celcom wireless broadband packages only offer with 1 GB (Gigabyte) or 3 GB (Gigabyte) usage limit per month. After reaching the limit set, the internet will either slow down or additional charges will be imposed. For TM BBdeal packages, it is unlimited usage. If you subscribe BBdeal 1 Mbps package (1 Megabyte per second), it takes approximately 17 minutes or 1024 second to achieve 1 Gigabyte (GB) download.
Email without attachment normally use about 8KB to 30 KB. Email with attachment using about 80 KB to 800KB. This is just a general guide and the usage amount may vary due to many factors.