Guys , this is my first thread. I am new to this forum. I want to know the following things :
1.) How does system BIOS reads the Hard Drive capacity ? Is there any controller chip on the HDD that contains the capacity information about the hard drive that the BIOS is able to read ?
2.) Then once again when we try to install Windows on that Hard Drive from where does Windows determine the size of the Hard Drive ? Is it from that chip or somewhere else ?
3.) The reason as why i am asking is because one of my friend has got a New Hard Drive that shows 250 GB in BIOS but while installing Windows on the brand new hard drive the unallocated space is being displayed as 175 GB ??????
Please help me to understand .
1.) How does system BIOS reads the Hard Drive capacity ? Is there any controller chip on the HDD that contains the capacity information about the hard drive that the BIOS is able to read ?
2.) Then once again when we try to install Windows on that Hard Drive from where does Windows determine the size of the Hard Drive ? Is it from that chip or somewhere else ?
3.) The reason as why i am asking is because one of my friend has got a New Hard Drive that shows 250 GB in BIOS but while installing Windows on the brand new hard drive the unallocated space is being displayed as 175 GB ??????
Please help me to understand .