THE WHATIS.COM WORD-OF-THE-DAY June 4, 2002 Hyper-Threading ______________ TODAY'S SPONSOR: The .tv Corporation
Save 30% on Web addresses! Not only will you get a great deal on your Web addresses, but you'll also get superior customer service, innovative products and services and a place that is easy to register and manage your Web addresses. Great names are still available. Register the names you want before someone else does! Check it out now: http://WhatIs.com/r/0,,3687,00.htm?the.tvcorporation ______________ TODAY'S WORD: Hyper-Threading See our definition with hyperlinks at http://whatis.techtarget.com/definition/0,,sid9_gci828854,00.html Hyper-Threading is a technology used by some Intel microprocessors that allows a single microprocessor to act like two separate processors to the operating system and the application programs that use it. It is a feature of Intel's IA-32 processor architecture. With Hyper-Threading, a microprocessor's "core" processor can execute two (rather than one) concurrent streams (or threads) of instructions sent by the operating system. Having two streams of execution units to work on allows more work to be done by the processor during each clock cycle. To the operating system, the Hyper-Threading microprocessor appears to be two separate processors. Because most of today's operating systems (such as Windows and Linux) are capable of dividing their work load among multiple processors (this is called symmetric multiprocessing or SMP), the operating system simply acts as though the Hyper-Threading processor is a pool of two processors. Intel notes that existing code will run correctly on a processor with Hyper-Threading but "some relatively simple code modifications are recommended to get the optimum benefit." RELATED TERMS: microprocessor http://searchhp.techtarget.com/sDefinition/0,,sid6_gci212568,00.html operating system http://searchwin2000.techtarget.com/sDefinition/0,,sid1_gci212714,00.html application program http://searchwebmanagement.techtarget.com/sDefinition/0,,sid27_gci507192,00.html thread http://whatis.techtarget.com/definition/0,,sid9_gci213139,00.html clock cycle http://searchwin2000.techtarget.com/sDefinition/0,,sid1_gci555039,00.html symmetric multiprocessing http://search390.techtarget.com/sDefinition/0,,sid10_gci214218,00.html ______________________ SELECTED LINKS: Intel has a paper about Hyper-Threading. http://www.intel.com/technology/hyperthread/download/25000802.pdf ______________________ WHATIS DISCUSSION FORUM | Challenge #1: Too many administrators! If Scott wasn't already going bald, he'd be tearing his hair out. Some of his company's trainers are insisting they need to have the ability to install applications and add printers to work stations in order to do their jobs effectively. Scott's boss, Dave, has given strict instructions to limit user rights and doesn't want ten people running around with local administrator privileges. What can Scott do to meet everyone's needs? Add your two cents to the discussion and we'll enter you to win a magic TechTarget baseball cap! http://whatis.discussions.techtarget.com/WebX?[EMAIL PROTECTED]^0@.1dcf9e64/11!viewtype=convdate&skip=&expand= ______________________ QUIZ #27 | Security awareness for end users Studies show that a company's biggest security threat is its own employees. The SANS Institute recommends that organizations should take time to educate their employees about computer security and periodically test employees to make sure they understand the basics. To help you in your efforts to raise security awareness in your organization, we've created the following quiz: http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci826572,00.html _________________________________________________________ LESS THAN 3 WEEKS UNTIL OUR FREE SECURITY DECISIONS EVENT Time's running out to attend Security Decisions June 19-21 at the Hilton Chicago Hotel. There are still seats left but you should act now or risk being shut out. FREE attendance available at: http://www.securityconf.com/html/registration.htm Benefit from top strategies to make the most cost-effective security purchases, expert tactics to close specific security holes in your system, and the most effective ways to manage network security (without breaking the bank). Apply today! ______________________________ RECENT ADDITIONS AND UPDATES [1] Fax Group http://whatis.techtarget.com/definition/0,,sid9_gci827309,00.html [2] IPLC http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci827417,00.html [3] restore point http://searchwin2000.techtarget.com/sDefinition/0,,sid1_gci827077,00.html [4] glocalization http://searchebusiness.techtarget.com/sDefinition/0,,sid19_gci826478,00.html [5] GLONASS http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci826952,00.html ____________________________________________________________________ ::::::::::::::::::: WHATIS.COM CONTACTS ::::::::::::::::::: LOWELL THING, Site Editor ([EMAIL PROTECTED]) ____________________________________________________________________ MARGARET ROUSE, Assistant Editor ([EMAIL PROTECTED]) ___________________________________________________________________ :::::::::::::::::::: ABOUT THIS NEWSLETTER ::::::::::::::::::::: Created by TechTarget (http://www.techtarget.com) TechTarget - The Most Targeted IT Media Copyright 2002, All Rights Reserved. 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