Hard drives etc?
I have been doing research in how a hard drive sort of works, now I am finding out how data is stored on a hard drive. Following is what I have currently have on how it works and how data is stored:
In a hard drive data is stored on aluminium or glass disks, anywhere from 1 3 disks per hard disk, the hard disk contains magnetic materials and is shinny to attract a charge.
An electronic mechanism is used to write data to one of the platters (disks) it does this by converting a byte into a magnetic domain and writes it to the disk. Reading the magnetic domain and converting it back to a byte is how a hard drive reads data.
Data is stored on a platter using sectors and tracks:
Tracks are like a circle around the platter and a sector is apart of the track which is formed by the triangle partition.
Doing a low level format forms the tracks and sectors. The starting and end point of each sector are written into the platter.
High level formats write the file system into the sectors, so that each sector is viable to hold files.
The operating system and hard drive work together in knowing where data is stored by storing information regarding the track number and the sector (Start and finish) the data is stored in.
However I am having trouble gathering in my head how data is stored if it makes sense, and the information regarding the magnetic domains what are these, is it like in RAM a bit is a charge (In D RAM)? So a byte is a magnetic domain?
Whats a cluster, how is the data stored, I read somewhere a file is either 1 or more clusters, by this I gathered that if you have a cluster 256kb in size, then If your file is: 386kb then it takes 2 clusters and out of the 2 clusters only 386kb out of 512kb is used and the rest is wasted?
If you can get back to me, or give me links or anything thank you, I will carry on researching now. I will be posting this information on my web site as well, so who ever helps me will get their name on my site. Reason I want to put this info on my site is for those people like me who have a learning deficiency
Regards
DislexiK
