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Can anyone explain how to work out how many gigabytes in petabyte?
There are 1,000,000 GB in one PB. 1 = byte 1,000 = kilobyte 1,000,000 = megabyte (million) 1,000,000,000 = gigabyte (billion) 1,000,000,000,000 = terabyte (trillion) 1,000,000,000,000,000 = petabyte (quadrillion)
How big is 256K?
256 MB = 1/4 of a GB. So there is a fourth of a gigabyte in 256 megabytes.
What is the half of one terabyte?
500 gigabytes
Where do you look on your computer to see how many mega bytes there are on the hard drive?
If you are using Windows, go to 'My Computer', right click your hard drive, click Properties and you will be shown the information for your hard drive (Note that this will tell you how much in gigabytes (gb). 1024 megabytes = 1 gigabyte).
How much more storage space do you get using 3 gigabytes at base 2 than with 3 gigabytes base 10?
Base 10: 3 Gigabytes (3 Gb) is 3,000,000,000 bytes.Base 2: 3 Giga-binary-bytes (3 Gib) is 3,221,225,472 bytes. The difference is therefore 221,225,472 bytes. Note that memory capacities are always specified precisely, in Gibs, whereas hard-disk drives are expressed approximately, in Gbs. Thus three 1 GiB memory chips will always equate to exactly 3,221,225,472 bytes while a 3 Gb hard drive is always *at least* 3,000,000,000 bytes. However, most operating systems report both memory and hard-drive capacities in Gibs rather than Gbs, but use the Gb acronym instead of the Gib acronym. Thus hard-drives always appear much smaller than they actually are. For instance, a 3 terabyte drive will be listed as a 2.7 Tb drive (rather than 2.7 Tib), but there's still at least 3 trillion bytes of capacity.
