****Why does 250GB hard disk have less than 233 GB?*** Hii Friends, Its been a long time i last posted.....So i want to share something more wanting, arousing question in minds of people.... My friend recently asked me a question regarding this same issue. I have nothing in mind that could clear him the doubt and so, did some research in the internet. Soon i came across facebook and i saw this post by some anonymous user posted in group. Give it a reading..... All Hard Disk manufacturer way of counting space is different from the way a software count a space. This means to a Hard Disk Manufacturer, 1GB is 1000 MB, 1 MB is 1000 KB and so on. Software or computer language recognize a space in terms of power of 2 say 21, 22,23 etc. hence a KB is 210 Bytes which is 1024 Bytes. Lets do a little math:From a Manufacturer a 250 GB harddisk is 250 x 1000 x 1000 x 1000 =250000000000 Bytes From the Computer Language point of view a 250000000000 Bytes is:250000000000/(1024*1024*1024)=232.83 GB