A Brief Note On Pentium Flaw

Submitted By nolaborn92

Words: 320

Pages: 2

Open Document

Courtney Bladsacker 1/22/14
Unit 5 Analysis 1: Pentium Flaw

The problem for Intel is that all Pentiums manufactured until sometime this fall had errors in the on-chip FPU instructions for division.

The most famous example and the worst well-known case is 4195835/3145727, discovered by Tim Coe of Vitesse Semiconductors

Intel's policy, when it first publicly admitted the problem around November 28 of 1994, was to replace Pentium chips only for those who could explain their need of high accuracy in complex calculations.

The Pentium microprocessor is the central processing unit for what are now possibly the widest-selling personal computers. Unlike previous CPUs that Intel made, the 486DX and Pentium chips included a floating-point unit FPU. Previous Intel CPUs did all their arithmetic using integers; programs that used floating-point numbers (non-integers like 2.5 or 3.14) needed to tell the chip how to divide them using integer arithmetic. The 486DX and Pentium chips have these instructions built into the chip, in their FPUs. This makes them much faster for intense numerical calculations, more complex, and more expensive. The problem for Intel is that all Pentiums manufactured until sometime this fall had errors in the on-chip FPU instructions for division. This caused the Pentium's FPU to incorrectly divide certain floating-point numbers.
Many software packages, including many that do

NT1310 PPT wk4 Essay examples

switch ports to patch panel or host to IO Copyright 2012, ITT ESI 1 Copyright 2012, ITT ESI  2 Wall Plates ◦ A plate that houses an IO and connects to a box in the wall ◦ May be fixed or modular (pictured) Copyright 2012, ITT ESI Cabling Pathways  ◦ Physical constructs to attach cables to in route ◦ Conduits and raceways enclose the cable ◦ Cable trays and caddies support the cable Copyright 2012, ITT ESI Copyright 2012, ITT ESI 4 http://www.supplierlist.com/photo_images/17963/Fiber_Optic_Distribution_CaseRack_Mounted_ODFFib…

Words 1475 - Pages 6

Type Of Data Cables

Cable (FO) ◦ ◦ ◦ ◦ ◦ Unit 3 Key Concept 1: Cable Types Copyright 2012, ITT ESI  1 UTP  ◦ ◦ ◦ ◦ ◦ ◦ Four Pairs of Copper Cable Number of twists varies per inch No shielding Very easy to work with Most common cable for LAN Cat 3, Cat 5, Cat 5e, Cat 6, Cat 7 will be defined in standards later in the course ◦ Most susceptible to Electromagnetic Interference (EMI) o o Copyright 2012, ITT ESI 4 Copyright 2012, ITT ESI 6 Similar to UTP Pairs shielded Core shielded SCTP o o Hybrid of…

Words 2771 - Pages 12

Essay about Strength and Challenges

To whom it may concern, I have been asked many times what my goals are as an IT professional, my questions, and my concerns, what I look forward to, what I’m scared of. Today’s society basically revolves around technology; to me that’s scary. everywhere you look there are I-phones, I-pads, lap tops, GPS, and so on. Growing up in our world it’s not only fun to have these devices but I believe it’s extremely important to know how to use these tools as well. I predict in the near future that technology…

Words 430 - Pages 2

project portfolio Essay examples

Research Think Tank statements, Policy Analyses, Corporate Brochures, White Papers, etc. b. ITT Tech Virtual Library, interviews, librarian, experts, periodicals, etc. 2. A timeline given the assignment dates for accomplishing tasks. 3. Some plan of locating and analyzing different perspectives (based on review of literature) 4. A working hypothesis, research question, or claim. Required Resources ITT Tech Virtual Library Submission Requirements Your completed document should be approximately…

Words 1389 - Pages 6

Wikiit PC Troubleshooting Tips

If you are encountering problems with your computer or other programs after installing new software on your computer, uninstall the program and see if the issues persist. Note: If after installing a program you are unable to boot into Windows, try booting into Safe Mode. After the program has been uninstalled try installing the program again. file:///C:/Users/David/Google%20Drive/ITT%20Tech/Capstone%20Project/pcwiki.html 1/5 12/6/2014 WikiIt PC Check for software program updates or new versions If you continue to experience issues verify that the program…

Words 1748 - Pages 7

Essay on NT 1210 Sept 2013 Wk 07 1

Objectives and Assignments Week 7 Instructor: Thomas W. Chappell, PhD. Office Hours (For appointments): Monday, Tuesday, Wednesday, Thursday 3:30 – 6:00 PM Objectives: Complete current week’s assignments submissions Important Notes: Attendance in class is critical to your accomplishments Missing class is missing valuable information that will help you succeed and accomplish your goals Please attend every class for success in your field! Grading…

Words 732 - Pages 3

Essay on Super Training

SuperTraining Corporation CS782Session2 2012 Revision: 1.6 Author: Thomas G. Meyer Date March 27, 2012 Table of Contents Assumptions 3 Section 1: Overview 3 Section 2: Manufacturing Information Systems 4 Section3: User Communication systems 5 Section4: Customer Relationship Management Systems 6 Section 5 Sales and Marketing Information Systems 7 Section 6: Firewalls 8 Section 7: Audio and Video Streaming 9 Section 8: Summary of Topics Not Chosen 11 Bibliography 12…

Words 3041 - Pages 13

Essay on graded assignments

PT1420 Introduction to Programming GRADED ASSIGNMENTS Graded Assignment Requirements This document includes all of the assignment requirements for the graded assignments in this course. Your instructor will provide the details about when each assignment is due. Unit 1 Assignment 1: Homework Learning Objectives and Outcomes Describe the role of software for computers. Identify the hardware associated with a computer…

Words 6014 - Pages 25

NT1110 KiaraCook Module3 WS Essay

In this lab, you will demonstrate the ability to examine and investigate the different types of motherboards and CPUs used in a computer. Required Setup and Tools Photos of motherboards and CPUs are provided in the lab worksheet. However, if possible, the case cover of a desktop computer should be removed in order to get a look inside the system at the motherboard. The system should be unplugged and off when this work is done. You also need access to the Internet for research. Use the Lab 3 Worksheet…

Words 1107 - Pages 5

Comparing and Contrasting Euclidean, Spherical, and Hyperbolic Geometries Essay

previous work. I also discovered why the Isosceles Triangle Theorem (ITT) held on all three of the surfaces. I have provided the homework assignment as an artifact for this because I would need to explain the entire proof. So, this gives the reader the opportunity to see why the Isosceles Triangle Theorem holds on all three surfaces. For this homework assignment I also proved the Corollary for the ITT and the converse of the ITT. One can see these by looking at my homework assignment Through…

Words 1824 - Pages 8