Posts Tagged ‘computer system’

postheadericon A Brief History of Computers at @JeremyMeyers dot com

by Jeremy Meyers Note: Yes, a lot of this is from Grolier’s Encyclopedia. Hey, I was young. I didn’t know any better. Credit where credit is due. Also, this information is only current as of the early 1990′s (1993, to be exact), and no I’m not planning to add more information anytime soon. I would not recommend scamming this for your own homework, as some of the conclusions are rather humorous today.

Citing This Work You are welcome to use this document as a reference in creating your own paper or research work on the subject. Please don’t just copy this paper verbatim and submit it as your own work, as I put a lot of time and effort into it. Plus, it’s bad karma. If you would like to use this work, please use this citation in your bibliography: Meyers, Jeremy, “A Short History of the Computer” [Online] Available ([current date]) Table of Contents: 1) In The Beginning… 5) The Modern “Stored Program” EDC 2) Babbage 6) Advances in the 1950s 3) Use of Punched Cards by Hollerith 7) Advances in the 1960s 4) Electronic Digital Computers 8) Recent Advances In The Beginning…

The history of computers starts out about 2000 years ago, at the birth of the abacus, a wooden rack holding two horizontal wires with beads strung on them. When these beads are moved around, according to programming rules memorized by the user, all regular arithmetic problems can be done. Another important invention around the same time was the Astrolabe, used for navigation. Blaise Pascal is usually credited for building the first digital computer in 1642. It added numbers entered with dials and was made to help his father, a tax collector. In 1671, Gottfried Wilhelm von Leibniz invented a computer that was built in 1694. It could add, and, after changing some things around, multiply. Leibniz invented a special stepped gear mechanism for introducing the addend digits, and this is still being used. The prototypes made by Pascal and Leibniz were not used in many places, and considered weird until a little more than a century later, when Thomas of Colmar (A.K.A. Charles Xavier Thomas) created the first successful mechanical calculator that could add, subtract, multiply, and divide. A lot of improved desktop calculators by many inventors followed, so that by about 1890, the range of improvements included:

  • Accumulation of partial results
  • Storage and automatic reentry of past results (A memory function)
  • Printing of the results

Each of these required manual installation. These improvements were mainly made for commercial users, and not for the needs of science.

Babbage
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postheadericon Keeping Old Computers Alive

Find additional tools and tips for greening your nonprofit through TechSoup’s GreenTech Initiative, where social benefit organizations can share and learn more about technology choices that can help to reduce our overall impact on the environment.

There are many reasons to replace your computers before they could reasonably be called old. Big corporations may replace their computers every three years or less. I usually recommend that nonprofits replace their computers every four years. One reason to do this is so computers are replaced before they fail, so that down-time can be scheduled instead of being caused by unexpected failure. Productivity increases with newer computers, as people spend less time waiting for programs to open and respond to commands.

Newer computers have newer technology, which means improved security, stability, and new features. Or maybe there is a new software package you want to use — and your old computer doesn’t meet the system requirements.

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postheadericon Here Is How I Fix My Slow Computer

When I need to fix my slow computer, I simply run a registry repair software. I used to get pretty upset when my computer would start running slow, locking up, restarting, or even giving me the blue screen of death. But now, no worries any more. I simply run my registry repair software, fix the errors causing the slowness, and let the software fix them for me. Using a registry repair program is the best way I have found to fix my slow computer.

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postheadericon High-performance computing

From Wikipedia, the free encyclopedia This article needs attention from an expert on the subject. See the talk page for details. WikiProject Computing or the Computing Portal may be able to help recruit an expert. (November 2008) This article does not cite any references or sources.
Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (November 2008)

High-performance computing (HPC) uses supercomputers and computer clusters to solve advanced computation problems. Today, computer systems approaching the teraflops-region are counted as HPC-computers.

  • 1 Overview
  • 2 Top 500
  • 3 See also
  • 4 External links

[edit] Overview
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postheadericon Optimize XP

Optimize XP – A Windows XP Optimization Guide

Optimize Windows XP to improve home, work and gaming performance safely. This Free guide will help you improve your overall system performance without having to manually edit the Registry. I avoid using or recommending “all-in-one” Windows XP Tweak programs since many blindly adjust settings that have no affect on performance and can cause future problems. This guide is designed to be performed top to bottom, in sequence since some steps are required to be performed before others. Before using this guide make sure your system meets the Windows XP System Requirements.

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postheadericon CPU socket

From Wikipedia, the free encyclopedia

A CPU socket or CPU slot is an electrical component that attaches to a printed circuit board (PCB) and is designed to house a microprocessor. It is a special type of integrated circuit socket designed for very high pin counts. A CPU socket provides many functions, including providing a physical structure to support the CPU, providing support for a heatsink, facilitating replacement (as well as reducing cost) and most importantly forming an electrical interface both with the CPU and the PCB. CPU sockets can most often be found in most desktop and server computers (laptops typically use surface mount CPUs), particularly those based on the Intel x86 architecture on the motherboard.

  • 1 Function
  • 2 List of sockets and slots
  • 3 Slotkets
  • 4 Notes and references
  • 5 See also
  • 6 External links

[edit] Function

A CPU socket is often made up of plastic, a metal lever or latch and metal contacts for each of the pins or lands on the CPU. Most packages are keyed to ensure the proper insertion of the CPU. CPUs with a PGA package are inserted into the socket and the latch is closed. This has the effect of physically securing and protecting the CPU as well as causing an electrical connection between all the CPU pins and the socket. In the case of LGA the CPU is placed onto the socket and a latch is closed over the CPU, securing it. Most CPU sockets are designed to support the installation of a heatsink. It must be able to protect the CPU from the weight of the heatsink (often very heavy in weight relative to the CPU) particularly during the installation and removal, but also ensuring the heatsink makes good thermal contact with the CPU.

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postheadericon Computer Software Engineers and Computer Programmers

Computer Software Engineers and Computer Programmers

  • Nature of the Work
  • Training, Other Qualifications, and Advancement
  • Employment
  • Job Outlook
  • Projections
  • Earnings
  • Wages
  • Related Occupations
  • Sources of Additional Information

Significant Points

  • Computer software engineers are among the occupations projected to grow the fastest and add the most new jobs over the 2008-18 decade, resulting in excellent job prospects.
  • Employment of computer programmers is expected to decline by 3 percent through 2018.
  • Job prospects will be best for applicants with a bachelor’s or higher degree and relevant experience.

Nature of the Work About this section

Computer software engineers design and develop software. They apply the theories and principles of computer science and mathematical analysis to create, test, and evaluate the software applications and systems that make computers work. The tasks performed by these workers evolve quickly, reflecting changes in technology and new areas of specialization, as well as the changing practices of employers. (A separate section on computer hardware engineers appears in the engineers section of the Handbook.)

Software engineers design and develop many types of software, including computer games, business applications, operating systems, network control systems, and middleware. They must be experts in the theory of computing systems, the structure of software, and the nature and limitations of hardware to ensure that the underlying systems will work properly.

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postheadericon Buying a cheap used computer on the net, finding refurbished computers.

Buying Cheap Used Computers (Recertified & Refurbished) If you want a cheap used computer without the risk of buying second hand then you need to learn about recertified, refurbished computers … read on … because this page will tell you all about how to get a cheap used computer that comes with a limited warranty.

I’ve spent a great deal of time online looking around for great deals on used computers that have been recertified.

Recertified means that they have been fully checked out and are sold with a warranty to ensure that they are working perfectly. These refurbished computers are really the safest way you can get a nice cheap used computer.

Finding A Recertified Computer Online Most local computer stores near where I live do not carry a big range of used computers. When I had a look online I was stunned by the range of recertified and refurbished computers I found. Since I’ve done some research I thought I’d share it with you.
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postheadericon PassMark PerformanceTest

PassMark PerformanceTest™

Versions: V7.0 (Build 1015) Win32 V7.0 (Build 1015) Win64

Latest release date: 6 July 2010 (Win32) 6 July 2010 (Win64)

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postheadericon Ways To Speed Up Your Computer

What can be more frustrating these days than waiting for a slow computer system to start-up and run programs. Not only is it such a hassle but it slows down your productivity and prevents you from finishing your other important work.

But, many non-techie PC users are not cognizant of the fact that there are easy ways to speed up your computer that are also not expensive.

Since part of the performance problem may be due to registry entries in your computers (or those settings used by programs you have already un-installed but are still there in your PC and taking up your systems’ resources), you may need to buy a registry cleaner application tool to help you get rid of them all properly.

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Computer - Wikipedia, the free encyclopedia

A computer is a programmable machine designed to automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be ...

What is a computer system? - A Word Definition From the Webopedia ...

This page describes computer systems and lists other pages on the Web where you can find additional information.

computer system: Definition from Answers.com

A set of related but unconnected components (hardware) of a computer or data-processing system. A set of hardware parts that are related and connected, and thus form ...

computer system: Information from Answers.com

The complete computer made up of the CPU, memory and related electronics (main cabinet), all the peripheral devices connected to it and its operating system. Computer ...

Personal computer - Wikipedia, the free encyclopedia

By 1982, Michael Dell observed that a personal computer system selling at retail for about $3,000 US was made of components that cost the dealer about $600; ...

Computer Systems | Computer Systems Reviews and Prices ...

Find Computer Systems prices and reviews. Find the lowest prices on Laptops, Desktops, Servers, and more at PriceGrabber.

Computer Systems Analysts

Computer Systems Analysts. Nature of the Work; Training, Other Qualifications, and Advancement; Employment; Job Outlook; Projections; Earnings; Wages; Related Occupations

HowStuffWorks "How Operating Systems Work"

The operating system controls your computer's tasks and manages system resources to optimize performance. Learn how your operating system works.

Computer Operating Systems

Helping you with questions you may have about computer operating systems as well as linking you to all the major computer operating systems.

Dell – The Official Site | Dell

Visit Dell.com for Laptops, Netbooks, Tablet PCs, Desktops, Monitors, Servers, Storage, Mobile Phones, Printers and Computer Accessories. ... Best Selling Systems.

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