You are in the: Small Business Computing Channelarrow View Sites +
Small Business Technology
» ECommerce-Guide | Small Business Computing | Webopedia | WinPlanet |  »Close
Enter a word for a definition... ...or choose a computer category.

   Term of the Day
   New Terms
   New Links
   Quick Reference
   Did You Know?
   Tech Support
   Webopedia Jobs
   About Us
   Link to Us

talk to us
   Submit a URL
   Suggest a Term
   Report an Error
Internet Lists
Internet News
Internet Resources
Linux/Open Source
Personal Technology
Small Business
Windows Technology
xSP Resources
Corporate Info
Tech Jobs
E-mail Offers
  Be a Commerce Partner

hard disk drive
Last modified: Tuesday, October 11, 2005 

The mechanism that reads and writes data on a hard disk. Hard disk drives (HDDs) for PCs generally have seek times of about 12 milliseconds or less. Many disk drives improve their performance through a technique called caching.

There are several interface standards for passing data between a hard disk and a computer. The most common are IDE and SCSI.

Hard disk drives are sometimes called Winchester drives, Winchester being the name of one of the first popular hard disk drive technologies developed by IBM in 1973.

Also see What's Inside a Hard Drive? in the Did You Know . . . ? section of Webopedia.

Also see "Formatting a Hard Disk Drive" in the "Did You Know...?" section of Webopedia.

E-mail this definition to a colleague

Sponsored listings

Symantec Enterprise: LiveState Recovery - Rapid real-time backup and disaster recovery solution. Trialware Demo.

Disaster Recovery Plan - Comprehensive Step-by-Step Best Practices Guide for IT Professionals. Free Sample Section - $495.

Pillar Data Systems: Data Recovery Services - Learn how Pillar Axiom lowers TCO and raises ROI by uniting SAN and NAS into one environment with a single storage pool and policy-based management.

For pages about hard disk drive . Also check out the following links!

Related Links

Hard Disk Interfaces and Configuration 
Describes the different major interface standards currently used by hard disks (and other devices). Provides sections about the IDE/ATA and SCSI interfaces. This page is from "The PC Guide."

Internal Hard Drive Parts 
What's inside your internal hard drive? Find out here.

PC Guide's hard disk drive reference 
Offers a large amount of information covering construction and operation, geometry and formatting, performance factors, BIOS and size issues, interfaces, configuration and file systems.

The Storage Review 
Focuses on reviews and technology news related to storage devices, particularly hard disk drives.

Troubleshooting Hard Disk Drives 
Includes troubleshooting information for a wide variety of hard disk problems. This page is from "The PC Guide." - device driver information 
A comprehensive resource for information about Windows 3.1, 95 and NT device drivers. Offers searchable categories for companies, products and FCC ID numbers as well as hard drive and memory specifications, and downloadable utilities.

Fast Hard Drives Page
This user page contains a collection of links to benchmark resouces, controllers, disks, distributors, newsgroups, vendor white papers, and reviews and FAQs for hard drives.

IDE Device Setup / Autodetection
Describes the BIOS settings that control the setup of IDE/ATA devices (particularly hard disk drives). This page is from "The PC Guide".

Operation of the Hard Disk Drive
Outlines the construction and operation of a PC’s hard disk drive and its relevant interface standards. Includes graphics, diagrams and an integrated glossary. This page is from "The PC Technology Guide."

Sponsored listings

Best Buy For Business. Find Hard Drives and More. - Visit us online to find Hard Drives and more than 100,000 other business-class technology products not available in stores. Shop now.

InterData Recovery Services: Hard Drives - Offers data recovery services for hard drives that have been damaged or scratched, have mechanical damage or involuntary formatting and file deletion.

Priority Electronics: Laptop Hard Drives - Online seller of laptop hard drives for leading laptop computers, including Dell, Sony, Toshiba, Hewlett Packard, Gateway, NEC, and Samsung.

Voyage Technologies: IBM Hard Disk Drives - A full service provider of IBM RS/6000 and pSeries servers, disk drives, workstations, and parts. Offers vast inventory, testing and refurbishment.

Aberdeen: Hard Drives - Online retailer of computer hard drives including IDE, SCSI and removable drives.

related categories

Hard Disk Drives

related terms

disk compression

disk drive


hard disk



scratch disk

spin valve



Von Neumann machine

Give Us Your

Hard Drives
hard disk drive Products

Shop by Top Models:
Hitachi Deskstar T7K250 (0A31636) 250 GB Hard Drive
13 store offers from $80 - $2021

Western Digital Caviar WD800JB Special Edition 80 GB Hard Drive
16 store offers from $42 - $83

Western Digital Caviar WD400JB Special Edition 40 GB Hard Drive
12 store offers from $45 - $72

LaCie d2 Extreme (300790U) 250 GB Hard Drive
18 store offers from $181 - $220

SmartDisk FireLite (USBFLB60) 60 GB Hard Drive
19 store offers from $129 - $190

JupiterWeb networks:

Search JupiterWeb:

Jupitermedia Corporation has two divisions:
Jupiterimages andJupiterWeb

Legal Notices, Licensing, Reprints, & Permissions, Privacy Policy.

Jupitermedia Corporate Info | Newsletters | Tech Jobs | Shopping | E-mail Offers