1 gigabyte is equal to-

The correct answer is C, 1024 megabytes. Computer storage is counted in powers of two, so each step up the ladder multiplies by 1024, and one gigabyte equals 1024 megabytes. The full ladder that papers test is: 8 bits make 1 byte, 1024 bytes make 1 kilobyte, 1024 kilobytes make 1 megabyte, 1024 megabytes make 1 gigabyte, 1024 gigabytes make 1 terabyte, and 1024 terabytes make 1 petabyte. The figure 1024 appears because it is 2 raised to the power 10, the natural unit for binary addressing. A is wrong because 1391 megabytes is not a power-of-two figure at all. B is wrong because 1024 kilobytes make one megabyte, not one gigabyte. D is wrong because 1150 megabytes is simply a made-up number. Exam tip: learn the chain bit, byte, KB, MB, GB, TB, PB with 1024 at every step, and 8 bits in one byte.