It depends on the bottle. The normal sized bottles have 16 ounces in them which is 2 cups. Some of the larger bottles will have 20 or 24 ources (2.5 or 3 cups). Every 8 ounces equals one cup. Now as far as needing 8 cups of water each day goes that is old information.
A gigabyte (GB) is a measure of computer data storage capacity that is roughly equivalent to 1 billion bytes. A gigabyte is two to the 30th power or 1,073,741,824 in decimal notation. The term is pronounced with two hard Gs. The prefix giga comes from a Greek word meaning giant.
By definition, there are 1000 gigabytes (GB) in 1 terabyte (TB). The prefix giga-means billion, 109, and tera-means trillion, 1012. There is another similar unit called the terabinary byte, or tebibyte.