6.51GB
It would make sense for it to be seven, but hardware manufacturers and engineers have a different idea of what a gigabyte is. A kilobyte is 1024 bytes, not 1000, and a megabyte is 1024 kb, not 1000, etc. This means that while 7,000,000,000 bytes would be 7 GB from the hardware manufacturer's perspective because they like to say it's 1000, not 1024, it's actually just 6.51.
This is why when you buy an 8 GB flashdrive, it's actually only 7.6GB, or when you buy a 500GB external hard drive, it's actually only around 460GB.
7,000,000,000 / 1024 / 1024 / 1024 = 6.51 Gigabytes.
7 and a half, roughly
That is approximately a Gigabyte. The prefix Giga normally means a billion, but in computer science, and specifically for data storage, it is often taken to be 10243. The difference is about 7%.
1 kilobyte = 1024^1 = 1,024 bytes1 megabyte = 1024^2 = 1,048,576 bytes1 gigabyte = 1024^3 = 1,073,741,824 bytes1 terabyte = 1024^4 = 1,099,511,627,776 bytes1 petabyte = 1024^5 = 1,125,899,906,842,624 bytes1 exabyte = 1024^6 = 1,152,921,504,606,846,976 bytes1 zettabyte = 1024^7 = 1,180,591,620,717,411,303,424 bytesSo there are 1024^7 / 1024^3 gigabytes in a zettabyte.1024^7 / 1024^3 = 1024^4 = 1,099,511,627,776 gigabytes in a zettabyte..!If you are using the purist SI units meaning of "giga-" and "zetta-" then this would be:1000^7 / 1000^3 = 1000^4 = 1,000,000,000,000
Either 7,168,000,000 bytes, 7,168,000 kilobytes, or 7,168 megabytes.
1 megabinary byte (MiB) or mebibyte (MiB) = 1,024 kilobinary bytes (KiB) = 1,048,576 bytes
That is perfectly normal. The reason is that hard drive manufacturers use different measuring standards. To them, 1 gigabyte = 1,000,000,000 bytes (1 gigabyte = 1000 megabyte; 1 megabyte = 1000 kilobyte; 1 kilobyte = 1000 bytes) . This is actually correct as the meaning of "giga" is "one billion" (just as the meaning of "kilo" is a thousand, think of "kilogram" and "kilometer"). However, operating systems (such as windows) see this differently. To them, 1 gigabyte = 1024 megabytes; 1 megabyte = 1024 kilobyte; 1 kilobyte =1024 bytes. If you do the math, you'll find that a gigabyte translates to 1,073,741,824 bytes. This is quite a bit more than one billion, about seven percent. The net effect of all this is that, seen from the side of the operating system, hard drives always look 7 percent smaller than advertized.
There are 2048 megabytes in 2 gigabytes because there are 210 or 1024 megabytes in one gigabyte. This is complicated slightly by the fact that there are two possible standards. In one (the one used in most computer applications) a gigabyte is 230 bytes and the answer above is correct. In the other (used almost exclusively by drive manufacturers), it's 109 bytes... about 7% less. Under the drive manufacturers' standard, 2 gigabytes is 2000 megabytes (and the megabytes themselves are somewhat smaller as well).
Because 140M is megabytes which is much less that 1G (1 gigabyte) = 1024M, it will fit about 7 times. Anyway usually the 1G drive is not usually guaranteed so it's only approximate value. FYI: M = MB = megabyte (1 * 2^20 bytes) and G = GB = gigabyte (1 * 2^30 bytes)
The concept of measuring time in gigabytes is not accurate. A gigabyte is a unit of digital storage capacity, not time. It represents 1 billion bytes of data. Time is measured in units such as seconds, minutes, and hours.
there are 7516192 kb in 7 gigabytes
A gigabyte is 1 billion bytes, 1000 megabytes, and an mp3 song will range in size from 1 Mb to 7 or 8 Mb depending on the bit-rate (determines music quality). So from 100 to 200 songs would be average. The 4 Gb "Ipod Shuffle" estimates numbers in the "thousands" assuming a moderate bit-rate.