Talk:Track (disk drive)

Computing Low‑importance

	This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing
Low	This article has been rated as Low-importance on the project's importance scale.
	This article is supported by Computer hardware task force (assessed as Mid-importance).

How many tracks are on a typical disk ?

Assuming that a modern drive stores 1 TB on a single platter, and that the shape of a bit on a drive is approximately square and the disk has tracks all the way up to the middle:

$8.10^{12}=\sum _{r=0}^{n}2\pi r\Rightarrow n=1595769$

And all the data is infinitely close to the outer edge:

$8.10^{12}=\sum _{r=0}^{n}2\pi n\Rightarrow n=1128379$ —Preceding unsigned comment added by Nroets (talk • contribs) 18:11, 2 December 2010 (UTC)[reply]