Computer Help forum

General discussion

hard drives

by baddle / April 23, 2004 12:38 AM PDT

This is probably a stupid question.
I noticed that my 214 mb hard drive is the same physical size as my 8 gb one. so i was wondering .
What exactly determine the amount of space on a hard drive?

Discussion is locked
You are posting a reply to: hard drives
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: hard drives
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Re:hard drives
by Mark G / April 23, 2004 1:24 AM PDT
In reply to: hard drives

its the number of disks i think

Collapse -
Re:hard drives
by Coryphaeus / April 23, 2004 3:20 AM PDT
In reply to: hard drives

Several things, but not really size, much.

In the 70s, IBM hard drives were 18 inches across and had 5-7 platters disks. They could hold about a hundred K.

Today's HDs use one or more platters, as many as 5 in a thick drive case. What really increased capacity was the speed of the pulses used to write the data. Faster pulses means more data. Add to that better magnetic material coating the (aluminum) platters that allows smaller regions of magnetic 1s and 0s.

Along with faster pulses came faster spin motors. Put them together and the sky's almost the limit. Check this out.

Hope this helps,

Telephony facts, analog/digital explained.
See the CNet faces behind the posts.

I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image. - - Stephen W. Hawking

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Turn up the volume with our Apple Byte sweeps!

Two lucky winners will take home the coveted smart speaker that lets Siri help you around your connected house. This sweepstake ends Feb. 25, 2018.