Cool Solutions



June 3, 2006 4:20 am






Many of us just have been used to the fact that a 300 gigabyte hard drive only shows up as a 280 GB drive in our PC. The difference in size is the result of the weird situation that the IT industry looks at a kilobyte as 1024 bytes while the prefix kilo stands for 1000. Hard drive manifacturers just use 1000 for kilo.

This week I installed SLED on my workstation at the office and saw that the disk space available in System Monitor was indicated as GiB, as I never saw this before I was thinking “is this a bug�??

No, it’s not a bug. One of my co-workers told me that the Gi prefix is the official prefix for 1024 x 1024 x 1024, just like there are Ki, Mi, Gi, Ti etc. For more details, have a look at Binary prefixes at Wikipedia.

Did you know about these standards? Have you seen these being used?

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  1. I’m still amazed that the cost of storage has fallen so much – and that the capacity of storage seems to grow exponentially.

    My first NetWare servers – NetWare 2.12 and NetWare 2.15 – had 300MB ESDI drives. [These were so expensive that the hot spares (already compsurfed and ztested) were kept in a locked firesafe.]

    I’ve got presentations larger than that today!

  2. By:Ron van Herk

    Stories about old harddrives, bit off topic but a great subject 🙂

    The hard drive in my first PC was a 10 Mb full hight 5¼ inch drive (with stacker I was able to get about 15 Mb on the drive). The 2.5 inch drive in my current laptop can hold about 6000 times as much.