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

magnetic drum
Last modified: Wednesday, April 25, 2001 

A direct-access, or random-access, storage device. A magnetic drum, also referred to as drum, is a metal cylinder coated with magnetic iron-oxide material on which data and programs can be stored. Magnetic drums were once used as a primary storage device but have since been implemented as auxiliary storage devices.

The tracks on a magnetic drum are assigned to channels located around the circumference of the drum, forming adjacent circular bands that wind around the drum. A single drum can have up to 200 tracks. As the drum rotates at a speed of up to 3,000 rpm, the device's read/write heads deposit magnetized spots on the drum during the write operation and sense these spots during a read operation. This action is similar to that of a magnetic tape or disk drive.

Unlike some disk packs, the magnetic drum cannot be physically removed. The drum is permanently mounted in the device. Magnetic drums are able to retrieve data at a quicker rate than tape or disk devices but are not able to store as much data as either of them.

E-mail this definition to a colleague

Sponsored listings

World Class Ink: Black Cartridge - Free same day shipping on all orders. 5% Discount if you purchase with PayPal. Next Day, 2nd Day, and International orders accepted.

For pages about magnetic drum . Also check out the following links!

Related Links

related categories

Data Storage


related terms

data mirroring

disk drive

ferrite core


mass storage

solid state disk


storage device

tape drive

Give Us Your

magnetic drum Products :

Top Store Offers:  16.99Evans : Drum Care/Maintenance - Magnetic Head Torque Drum Key. Along with having an ergonomic handle for comfort, a knurled knob for easy head changes...
Musician's Friend  6.99Drop-forged, ergonomically designed for comfort. Knurled knob for quick, easy spinning. Magnetic head helps prevent slipping and stays in place for fa...
Amazon  6.95Knurled knob Magnetic head Rattle-free
Amazon Marketplace  6.95Knurled knob Magnetic head Rattle-free  329.99Bosphorus : Ride Cymbals - 22' Stanton Moore Wide Ride. Bosphorus worked for two years with Stanton on the development of his signature series cymbals...

Compare all matches:
0 Store Offers

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