You are in the: Small Business Computing Channelarrow
Small Business Technology
Enter a word for a definition... ...or choose a computer category.

   Term of the Day
   New Terms
   New Links
   Quick Reference
   Did You Know?
   Search Tool
   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
Small Business
Windows Technology
Wireless Internet
xSP Resources

Corporate Info
Tech Jobs
E-mail Offers
  Be a Commerce Partner

Last modified: Monday, October 14, 2002 

A very large and expensive computer capable of supporting hundreds, or even thousands, of users simultaneously. In the hierarchy that starts with a simple microprocessor (in watches, for example) at the bottom and moves to supercomputers at the top, mainframes are just below supercomputers. In some ways, mainframes are more powerful than supercomputers because they support more simultaneous programs. But supercomputers can execute a single program faster than a mainframe. The distinction between small mainframes and minicomputers is vague, depending really on how the manufacturer wants to market its machines.

E-mail this definition to a colleague

Sponsored listings

All Service Computer Rental: Servers - Nationwide, short and medium term, business only rentals of a wide range of servers and related support services.

Cobalt Computers: Servers - Delivers computer servers and data capture systems for research and development, life sciences, and neuroscience hardware and software developers.

Gateway: Servers - Seller of computer servers. Includes tower servers, rackmount servers, rack cabinets and accessories, server add-ons, drives, memory and more.

For pages about mainframe . Also check out the following links!

Related Links

IBM System/390 site
This IBM site offers news, products and services, marketing and network information, and developer solutions for the System/390.

Mainframe Service Providers home page
MainFrame Service Providers offers IBM S/390 hardware and support services. Their home page provides links to a company profile, technology information and news, and service offerings.

Yahoo!'s mainframe page
Yahoo!'s directory of mainframes.

Sponsored listings

Ames Sciences: Refurbished IBM Servers - Online IBM store selling refurbished and used IBM computers, servers, workstations and parts worldwide. Offers maintenance services also.

NextCom: Servers - Provides mobile Unix computer solutions with a particular focus on Solaris and Linux based portable platforms, including servers.

HP Business Store: Computer Server - Purchase Computer Servers online. Also find HP Compaq notebooks and desktops, HP printers, servers, handhelds, and storage solutions.

System 3X: AS/400 Connectivity Solutions - Online warehouse features AS/400 products. Offers client server connections, twinax and coax cables, print servers, terminal access servers, and UPS. Server Cases - Offers a wide selection of products ranging from power supplies, PC cases, server cases, 1u, 2u, 3u, 4u, and 5u rackmount cases. Mini ITX barebone.

related categories


Types of Computers

related terms


glass house




legacy application








Give Us Your

Network Management Tools

Shop by Top Models:
Wall Data RUMBA Mainframe Edition 7.1 (902126-005) for PC
14 store offers from $169 - $303

Wall Data RUMBA Mainframe Edition 7.1 (902451-004) for PC
9 store offers from $95 - $124

NetManage Rumba Web Mainframe Edition 7.2 (902126-006) for PC
2 store offers from $245 - $258

NetManage RUMBA 2000 Mainframe Edition 7.1 (C902126-005) for PC
2 store offers from $255 - $258

NetManage NS/Portfolio For Mainframe 3.1 (NSPMWA-001-LI2E310) for PC
1 store offers from $217 - $217

JupiterWeb networks:


Search JupiterWeb:

Jupitermedia Corporation has four divisions:
JupiterWeb, JupiterResearch, JupiterEvents and JupiterImages

Copyright 2004 Jupitermedia Corporation All Rights Reserved.
Legal Notices, Licensing, Reprints, & Permissions, Privacy Policy.

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