4,7 GB DVD’s

Recently I get caught into the 4,7 GB DVD-trap. A lot of (all?) memory producers (USB stick, DVD, HDD, …) say e.g. DVD 4,7 GB! And so a lot of (power) users think: 4,7 GB!

But this is not the truth!

GiB (Gibibyte) 1.073.741.824 Byte
GB  (Gigabyte) 1.000.000.000 Byte

Since my first steps (> 15 years ago) in programming software (C/C++) I was aware of the 1024 thing… In IT everybody knows about it and it was clear if someone said: 1 KB (=1024 Byte). Everybody was knowing it!!

But then (I assume some smart mathematic or ISO freaks) said: Kilo = 1000 (which is true of course!!) but in computer’s world (made of a lot of bits –> 2 ^ x) it is a difference!

And this "confusion" is utilized by a lot of manufactures which say: DVD 4,7 GB!

Thank you!

About hfrmobile

Nice guy but with a sarcastic type of humor. I have combined hobby and profession and I am happy about this. At the moment I am holding MCP, MCSE (NT 4.0), MCTS and MCPD certificates. Having experience in developing software for more than 15 years. Started learning programming using Pascal, Assembler, C/C++. Also having experience with non-Microsoft products / programming languages (e.g. PHP). Most experiences at the moment: MySQL, MS-SQL, PL/SQL, ASP.NET, C#, Silverlight (Windows Phone) and WPF.
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