Login or Register close  
Existing User
Login Email *  
Password *  
Captcha *      reload_icon.png
 
  login Forget Password
Why Register
* Get Regular updates on courses of your choice
* Universities will contact you with their details
* Get Scholarships, Offers & Gifts
* Get access to information on visas, admission process for world wide
 
New User
Name *  
Your Email id *  
Password *  
Conform Password *  
Nationality *  
Mobile Number  
Type of User *  
  Captcha *    reload_icon.png
 
Highest Education  
Education Interest  
Study In  
 Subscribe Globalcareerclub Newsletter.
 I agree to the Terms of use and Privacy Policy
    Register
View Container :: Create Forum Topics :: Create Forum Comments

Forum Topic : What is Hard Disk?
Submitted by Sandhya on 23/06/2009 - 11:15 PM
All of the information that's "in your computer", so to speak, is stored on your computer's hard disk. You never see that actual hard disk because it's sealed inside a special housing and needs to stay that way. Unlike RAM, which is volatile, the hard disk can hold information forever -- with or without electricity. Most modern hard disks have tens of billions of bytes of storage space on them. Which, in English, means that you can create, save, and download files for months or years without using up all the storage space it provides.

In the unlikely event that you do manage to fill up your hard disk, Windows will start showing a little message on the screen that reads "You are running low on disk space" well in advance of any problems. In fact, if that message appears, it won't until you're down to about 800 MB of free space. And 800 MB of empty space is equal to about 600 blank floppy disks. That's still plenty of room!

forum

Reply
What is the capacity of Hard disk in different com
Submitted by Tanvi on 08/07/2009 - 07:06 PM
Hi Sandhya,

Can you tell me regarding the capacity of the Hard disk? How it works on different computers?
Reply
Capacity and Performance of Harddisk
Submitted by Sandhya on 08/07/2009 - 07:13 PM
Capacity of Harddisk:
A typical desktop machine will have a hard disk with a capacity of between 10 and 40 gigabytes. Data is stored onto the disk in the form of files. A file is simply a named collection of bytes.

When a program running on the computer requests a file, the hard disk retrieves its bytes and sends them to the CPU one at a time.

Performance:
There are two ways to measure the performance of a hard disk:
* Data rate - The data rate is the number of bytes per second that the drive can deliver to the CPU. Rates between 5 and 40 megabytes per second are common.

* Seek time - The seek time is the amount of time between when the CPU requests a file and when the first byte of the file is sent to the CPU. Times between 10 and 20 milliseconds are common.
About Us  -   About GCC  -   Contact Us  -   Feedback  -   FAQ  -   Privacy Policy  -   Terms and Conditions  -   Sitemap
Partner Websites : indiancareerclub.com  -   clubforeducation.com  -   Study MBBS in Philippines  -   Study Engineering in Philippines