Japan

Storage Products Top > Storage Innovation > An introduction to HDDs.

An introduction to HDDs.

"Built-in XXX GB HDD"
You may have seen this phrase in explanations of digital devices such as computers, DVD/HDD recorders, portable AV players, or car navigation devices.
But what does an HDD look like?
What roles does it play in a digital device?
And just what is a "hard disk" anyway?

This page gives an easy-to-understand explanation of HDDs, including their structure, history, and a few technical details.


  • What is an HDD?
  • What types of HDDs are there?
  • Where is the data written to?
  • What do the other parts in an HDD do?
  • HDD technologies exclusive to Toshiba