As the plates continue to press against one another, the ocean plate gradually sinks beneath the continental crust and re-enters the mantle. According to Live Science, the deepest known ocean trench is the Mariana Trench, located in the Pacific Ocean. It is approximately 1,500 miles long. The deepest portion of the Mariana Trench is the Challenger Deep, a narrow portion at the southern end, which is roughly 36,000 feet deep. The water temperature in this area is slightly above freezing.The world's ocean trenches remain largely unexplored due to the immense pressures at such depths.
These are computer measurements of the size of a folder, file, hard drive, etc. 1  A bit is a binary digit. 2  A byte is 8 bits. 3  A kilobyte (kB) is 1,000 bytes.  A megabyte (MB) is 1,000,000 bytes.
The prefix kilo, also used in the metric system, denotes 1024 bytes or a kilobyte. The number isn't exactly 1,000 because bytes are based off the binary system (0 and 1) where 2^10 = 1024. Megabytes versus Gigabytes. Megabytes and gigabytes, like the kilobyte, are magnitudes of bytes. Basically, a gigabyte is larger than a megabyte. The difference is similar to that between one billion and one million, respectively. For example, when you buy a computer with 500 GB, this means it can store approximately 500 billion bytes of information.