Tuesday, October 19, 2010

The Hard Disk Drive Part 2

As i mentioned on part1 of this blog. Your requirement is important in determining the size of your hard disk. I also mentioned the term IDE, EIDE and SATA, well this are just some of the technology involve in a total hard disk makeup. The other technology is the RPM or Revolution Per Minute.The WHAT?????. You see there are plates inside the hard disk, this circular plate is coated with a certain material that make it able to store your data. Now what is that material, you may ask. I will try to give a less technical explanation of that as i can. I need to maintain a less technical look for all this technical stuff so i can reach out to all the other people who does not need to understand a more technical terms and approaches. Now lets go back to the RPM. You see the plate inside the HDD needs to spin around in order to save and/or access the data or your infoemation. If for somehow it cannot spin well then your hard disk is in alot of trouble there something wrong with it and it needs to be replaced.

IDE Drive connector



The higher the RPM of your HDD the faster it can get your data. For example a hard disk with a 5400 rpm is slower than a 7200 rpm and vice versa. Other hard disk can have an RPM of 10,000. The standard rpm for regular hard disk is 7200. Also thie is cost related, the higher the RPM the higher the cost of the hard disk. Yup that the truth of it, You may ask,what the diffrent of a slower RPM than a faster RPM. Well in small files or simple application usage let says playing solitare then there is not much differences in terms of perofrmance of your hard disk. But as your requirement grows then you will begin to  notice that it taking a bit longer than the usual to get that files to run may favorite games or software, my music player suddenly takes longer to load, my computer seems a bit slower than before, and also a whole lot of things, you begin to notice.

Inside a typical Hard Drive


The RPM of the hard disk is also a factor in determining the overall speed performance of your computer. Its contribute to the the time your computer "BOOT" meanng the moment you press the ON switch on your computer it will do a self check. It examined itself to see if all the necessary parts for it to work properly is there and that they are working fine. Its check the keyboard if its connected and working properly, that why when you see the ligths on your keyboard blinks it means its checking it and same  is true with your hard disk, because the hard disk is where the software the control the hardware that your computer to see if the hard disk is working fine and is properly configured. As soon as all of this is done, then its load the software that would control or use the hardware. Without the hard disk or if something is wrong with the hard disk on your computer then, the software will not load properly, but this is just one aspect of it. Whewwww there are alot of them out there.

Okay back to the RPM of your hard disk, the size of the file or files that your intend to use is also a factor for a faster or slower RPM. You see the bigger the files, software and othes, the slower its appear on your screen. This is the moment you click on that file the hard disk access it from the hard disk location. When it finds it then it load from the hard disk to the memory and then it appear on your screen. That the only time you can use that file. The faster it can access that location where your file is located the faster it cen be loaded to the memory and the faster it will appear on your screen.

I hope i was able to help you in understanding the RPM and process the take place inside your hard disk and your computer when a files is accessed and how the RPM can contributes to the overall speed performance of your computer. 

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