...Computing hardware evolved from machines that needed separate manual action to perform each arithmetic operation, to punched card machines, and then to stored-program computers. The history of stored-program computers relates first to computer architecture, that is, the organization of the units to perform input and output, to store data and to operate as an integrated mechanism. Before the development of the general-purpose computer, most calculations were done by humans. Mechanical tools to help humans with digital calculations were then called "calculating machines", by proprietary names, or even as they are now, calculators. It was those humans who used the machines who were then called computers. Aside from written numerals, the first aids to computation were purely mechanical devices which required the operator to set up the initial values of an elementary arithmetic operation, then manipulate the device to obtain the result. A sophisticated (and comparatively recent) example is the slide rule, in which numbers are represented as lengths on a logarithmic scale and computation is performed by setting a cursor and aligning sliding scales, thus adding those lengths. Numbers could be represented in a continuous "analog" form, for instance a voltage or some other physical property was set to be proportional to the number. Analog computers, like those designed and built by Vannevar Bush before World War II were of this type. Numbers could be represented in the form of digits...
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...Basics of computer hardware The Basics of Computer Hardware By: Stephen Lomangino Dr. Fahey ITT-Technical Institute: College of Information Technology Abstract This paper identifies the many different parts a computer needs to operate and perform basic tasks. Among these are the motherboard, central processing unit (CPU), and random access memory (RAM). While these components are somewhat mandatory for computer performance this paper will also cover optional pieces of hardware that can improve quality and speed of the computer. These can include graphics processing units (GPU) and additional RAM. All parts of the computer can be upgraded but one must take into consideration the size and airflow capabilities of the computer case to be sure that all upgrades will fit without getting too hot or crowded. If the case were to get too hot the CPU could overheat and shut down the computer. Due to this possible situation this paper will go over the special precautions that must be made to accommodate the size and heat generation of upgraded hardware. The Basics of Computer Hardware Building a computer is similar to building a house, first you build the foundation then everything gets built on top of it. Instead of building on concrete, the foundation for a computer is the case and the motherboard. The case is equivalent to the walls and ceiling of the house, once you have those you can put any other amenities into the house as needed. Computer...
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...in regards to disposing of old computers, was making sure all of your personal data was wiped, not about recycling. I think one of the most important things you can do when getting ready to dispose of a computer is to make sure you properly delete all personal information that may be left over on your hard drive. People have computers that “die” or are not able to work anymore, so they might think just throwing them away is safe. But someone who has even a little knowledge about computers can easily open up your laptop or desktop and take out your hard drive. Hooked up to another computer, it would be very easy for them to scan it for personal information. t’s odd to think about replacing a motherboard, because I have actually considered this on personal computers I have owned in the past. But when I talk with some friends who are not as comfortable with changing out hardware, they often times feel so lost because they are not really sure what to look for when purchasing components, such as a motherboard. I think the first thing you need to decide on when shopping for a motherboard, is what is it going to be used for? Are you using your computer for just checking emails and Facebook? Or will you be doing some heavy processing, such as gaming or video editing? I would assume that someone who is actually shopping for a motherboard is doing so because they want to upgrade their computer. So it’s probably a safe bet to...
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...Identify hardware and software needed to secure your choice of networks against all electronic threats. Networking hardware is hardware that is used to help work stations connect to a server. Although there are many different kinds of hardware like bridges, network cards the networking hardware that I have chosen to use in within my company’s network are routers, firewalls and switches. Using both routers and firewalls will help protect not only wireless networks but also those networks that use Ethernet cabling. I chose this hardware because I felt that it’s the best hardware to use when keeping my company’s network safe. The software that I have chosen to use is McAfee Anti-virus security software. This software along with the firewall will keep my company’s network safe and secure. Routers along with firewalls are the top network security hardware needed when it comes to keeping a network almost if not all totally secure. The firewall blocks out any unwanted activity as well block hackers from possibly hacking into our networks and stealing important information that pertains to our company and its customers. Along with the router and firewall networking software also plays a major part. The software is what the firewall uses to create its security barrier over the network. McAfee is one of the top manufacturers when it comes to network security. This software enables the use of not only the internet’s firewall but also the ability to detect viruses, anti-spyware upon...
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...Discussion: Computer Hardware Components There where several different articles that I found that talked extensively about different computer hardware components. The one component that I found that was interesting and that I never know how many different computer components go into it is graphics cards. Graphics cards use every part of a computer to function correctly and they are built right into the card its self. They have their own RAM, some have their own power supply and they even have their own type of CPU that is called a graphics processing unit or GPU. The author, Jeff Tyson, went into detail on how the graphics card takes information from the CPU and makes it into a picture on your monitor. Tyson (2001) brock it down into lemans terms by saying: Think of a computer as a company with its own art department. When people in the company want a piece of artwork, they send a request to the art department. The art department decides how to create the image and then puts it on paper. The end result is that someone's idea becomes an actual, viewable picture. (P.1) I think it is just amazing on how the simple little card can take information and know how to put it on the monitor as a picture. What is even more amazing is how it works with gaming and is able to make these calculations that fast without any issues, that’s if you have the card that can handle the game. Most standard motherboards come with some type of graphics card but if you want to do more then just...
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...z FETAC LEVEL 5 L22142 By Declan Brady Date: 05/02/2013 Tutor: Val Coakley Table of Contents Introduction 3 Methodology 4 History of Computers 5 Computer Hardware and Computer Software 9 The Four Main Components of Computer Systems 10 Types of Computer Systems 12 Examples of Computer Input Devices 14 Examples of Computer Output Devices 15 Printers 17 Equipment of the Modern Office 19 Storage Devices 21 Computer Networks – LAN and WAN 22 Systems Software and Application Software……………………………………………24 Conclusion 24 Bibliography 25 Introduction This project is been carried out for the Business Computing module for the Computer and Network Technician FETAC Level 5 Certificate course. In completing this project I hope to acquire a greater understanding of computers and the technology that is commonly used with them in the modern workplace. The carrying out of this project itself will also hopefully leave me better equipped with the skills to carry out projects in the workplace if I am required to do so in the future. For this project I will use the internet to research for the information that this report requires. Once I feel confident I have enough sources for the topics that need to be covered I will start choosing relevant information from these websites and use them in my report where needed. If needed the information taken from websites will be rephrased so that the content is fully relevant to the project. For this report...
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... | |Qualification: | |COMPUTER HARDWARE SERVICING NC II | |[pic] |Technical Education and Skills Development Authority | | |East Service Road, South Superhighway, Taguig City, Metro Manila | TABLE OF CONTENTS Page A. COURSE DESIGN 1-5 B. MODULES OF INSTRUCTION 6-73 • Basic Competencies 6 o Participating in workplace communication ………………… 7-10 o Working in a team environment ……………….... 11-13 o Practicing career professionalism .……………. 14-17 o Practicing occupational health and safety procedures 18-22 • Common Competencies 23 o Applying quality standards …………………………………… 24-27 o Performing computer operations 28-34 o Performing mensuration and calculation 35-38 o Preparing and interpreting technical drawing 39-42 o Using hand tools 43-47 o Terminating and connecting electrical...
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...Hardware 12/27/12 Scenario 1 Scenario 1 Low End Workstation Have you ever built a low end workstation for a business? Have you ever wanted to know how to build a computer? Have you ever wondered how to make a computer on your own with step by step directions? To build a low end workstation for a business or server you would have to have the proper motherboard, computer case, RAM, power supply, hard drive, CPU, and a DVD disk drive. When you are looking to build a computer you need to make sure that all of the parts are compatible and will fit in your tower. I would first look for a motherboard and computer case. I went with a biostar G41D3 motherboard. It is a micro ATX so you will have to make all of your components will fit onto it. You will have to pick a tower that will fit the micro ATX motherboard. I chose the cooler master elite mid tower case. I chose this case because it will have more air flow since it will be a server so it will probably be running more frequently than a regular computer. I then chose a hard drive. To choose a hard drive you have to know what kind it is. Usually the motherboard will come with a list of compatible hardware. The motherboard I chose is compatible with a SATA hard drive.I chose an intel dual processor because it does not need to perform a lot of tasks at once and it goes with the motherboard. You can find out that the motherboard and the CPU fit together by looking at the specifications of the motherboard. I chose a Toshiba 1 TB...
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...Best Device for Your Needs Introduction to Computer and Network Hardware: ITCO103 - 1401A – 01 IP 1 Best Device for Your Needs Many people are updating their smartphones, laptops and desktops. There are so many options to choose from brand, size and performance. This paper will discuss and compare some of today’s best bargain laptops and computers that will also offer some of today’s most updated software and features. I will also discuss two of the most popular smartphones comparing and contrasting each devices features. While shopping on the internet for the best computer system I had hundreds of choices. I decided to narrow my choices down by picking a device that had all the features I needed in a computer system, but had a reasonable price tag for a full time worker and a part time student budget. The best option for me is the Dell Inspiron 660, and the Canon PIXMA MG2220 all-n-one printer it has all the features and needs that I would need in a personal home desktop system. The price point for this desktop is around $529.00. This device can be purchased at Wal-Mart, Best Buy, and Hhgreeg making it accessible to most for in store purchase. This desktop is also available for purchase online as well from the dell website directly for the price listed above. The system software consists of OS Provided Microsoft Windows 7 Home Premium 64-bit Edition. The system setup specs...
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...Introduction to Structured Query Language This page is a introductory tutorial of the Structured Query Language (also known as SQL) and is a pioneering effort on the World Wide Web, as this is the first comprehensive SQL tutorial available on the Internet. SQL allows users to access data in relational database management systems, such as Oracle, Sybase, Informix, Microsoft SQL Server, Access, and others, by allowing users to describe the data the user wishes to see. SQL also allows users to define the data in a database, and manipulate that data. This page will describe how to use SQL, and give examples. The SQL used in this document is "ANSI", or standard SQL, and no SQL features of specific database management systems will be discussed until the "Nonstandard SQL" section. It is recommended that you print this page, so that you can easily refer back to previous examples. Also, you may be interested in joining the new SQL Club on Yahoo!, where you can read or enter messages in a SQL forum. Table of Contents Basics of the SELECT Statement Conditional Selection Relational Operators Compound Conditions IN & BETWEEN Using LIKE Joins Keys Performing a Join Eliminating Duplicates Aliases & In/Subqueries Aggregate Functions Views Creating New Tables Altering Tables Adding Data Deleting Data Updating Data Indexes GROUP BY & HAVING More Subqueries EXISTS & ALL UNION & Outer Joins Embedded SQL Common SQL Questions Nonstandard SQL Syntax Summary Exercises Important Links Basics...
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...I watched the movie Heaven is for real, based on the book by Todd Burpo and Lynn Vincent. The movie is about a boy and his family who are having some seemingly bad luck. The boys’ father works multiple jobs he is a pastor of a church, he is a handy-man, and a priest for the dying in a hospital. The boy gets sick and his appendix ruptured. When he wakes up he has visited heaven and met Jesus, he also knows things he shouldn’t such as his dad yelling at god in the hospital chapel. He explains that he saw the doctors working on him and angels singing. My views on religion are very diverse. I was brought up catholic, turned Christian when my mother converted, and now I am unsure. I believe all gods are as possible as another. When I think of gods or the afterlife I picture the Christian version with Jesus, angels, cherubs, etc. Though I subconsciously hope for this outcome, I would accept any outcome be it God, Buddha, Allah, Zeus, Kali, or Osiris. I also see myself as powerless to do anything about what afterlife exists, but I’ll accept any of them. If I died and Buddha was the one to appear in front of me I believe he or any other god would be as forgiving and understanding to all of us. We may never fully understand how the afterlife is until we get there, later rather than sooner in my opinion. For now all we can do is have faith in something and act goodly towards others, as any god would ask of us. I truly enjoyed the movie and the paper for making me think of how I view...
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...following are versions of Windows XP? A) Windows XP Home Edition B) Windows XP Professional C) Windows XP Media Center Edition D) Windows XP Tablet PC Edition E) Windows XP Professional x64 Edition F) All are versions of XP...although some are less significant. 3. The largest and more important circuit board in the computer is the _____________. A) Daughter Board B) Key Board C) Motherboard D) Random Access Memory (RAM) E) PCI Network Card 4. Currently, approximately _____ of personal computers sold today are Macintosh computers. A) Less than 10% B) 10% C) over 40% D) 25% 5. Primary storage is stored on a devices called __________, which is lost when the computer is shutdown. An example of secondary storage is a ___________, which is permanent storage and not lost when the computer is shutdown. A) Hard Drives, RAM Stick B) DVDs, Hard Drive C) Flash Drives, RAM Stick D) Hard Drives, CD E) RAM, Hard Drive 6. What two sources provide device drivers for hardware devices for an operating system? A) Operating System & Driverguide.com B) Kernel & Registry C) Operating system & Manufacturers of Hardware D) Manufacturers of Hardware & Kernel E) Driverguide.com & Microsoft Corp. 7. What are the two most popular output devices? A) Monitor and Printer B) Printer and Mouse C) Monitor and Scanner D) Projector and Printer E) Keyboard and Mouse 8. Hertz (Hz) is ________ cycle(s) per second...Megahertz (MHz) is __________ cycle(s) per...
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...thankful that you have given us the opportunity to prepare this report under your supervision and hope that this report will meet the standards of your verdict. Sincerely yours, (Syed Shohan Shah) On the behalf of the group EXECUTIVE SUMMARY In this modern age computer is a very essential in our everyday life. It helps our every work. Without computer we can not live without a single day. It has many parts like hardware which are touchable and software which are untouchable. Computer users may use a scoring system of evaluation when there are several competing proposals for a hardware or software acquisition. They give each evaluation factor a certain number of maximum possible points. Then they assign each competing proposal points for each factor, depending on how well it meets the specifications of the computer user. Scoring each evaluation factor for several proposals helps organize and document the evaluation process. It also spotlights the strengths and weaknesses of each proposal. Computer Hardware 1.0 Monitor Multiple technologies have been used for computer monitors. Until the 21st century most used cathode ray tubes but they have largely...
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...IMPORTANCE OF SECURING DATA AND SOFTWARE MORE THAN COMPUTER HARDWARE IN AN ORGANIZATION BY DHUMISAN CHISI SUBMITTED TO MR MWEKHELA IN PARTIAL FULFILLMENT FOR THE COURSE FUNDAMENTALS OF INFORMATION SYSTEMS COURSE CODE CCC1073 THE MALAWI ASSEMBLIES OF GOD UNIVERSITY 23TH MARCH 2015 Information systems have long been at some risk from malicious actions or unplanned user errors and from natural and man-made disasters. In recent years, systems have become more at risk to these threats because computers have become more organized and, thus, more interdependent and accessible to a larger number of individuals. In addition, the number of individuals with computer skills is increasing, and intrusion, or “hacking,” techniques are becoming more widely known via the Internet and other media. In large organizations computers are kept in large scales and also store a lot of important data and information plus maybe softwares of the at most important. These softwares and information require to be kept safe and protected. It is the sole purpose of this paper to explain the reasons why it is important to secure the organizations data/information and computer softwares of an organization. Some of the information used in business organization requires special protection for confidentiality (to ensure that only those who need access to that information to do their jobs actually have access to it). Some of the information used in business organizations need protection...
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...E-2. El INFORME DE INVERSIÓN DE SOFTWARE se utiliza para calcular el monto total invertido en software. Alineación del campo en informes • Cada columna parece ser propiedad alineada Señalar un contenido • Licencia campo Período de ayuda a no perder de vista el tiempo de caducidad de licencia • Las copias están actualmente en uso en el campo ayuda a no perder de vista que no. de ejemplares utilizados actualmente y las que están disponibles Todo el resto es bueno E-3. El INFORME DE COMPUTADORAS INSTALADAS muestra la información de los equipos instalados. Critica Alineación del campo en informes • Campos necesitan ser estandarizadas • Necesidad de cambiar alguna ubicación presentada para ser más claro Contenido del reporte • Que tenga que cambiar la conexión de red a la conexión a Internet Apariencia visual • Tenga que cambiar el diseño para ser más claro • Mover toda la especificación a la izquierda Datos de la pantalla y la alineación del subtítulo • Que mover los totales a la izquierda Pantalla apariencia visual • Llena E-4.El prototipo para el INFORME DE PROBLEMAS DE COMPUTADORAS muestra una lista de todos los equipos orde-nados en base al costo total de las reparaciones e incluye el número de reparaciones (algunos equipos no tienen un costo alto, ya que aún se encuentran bajo garantía). Este prototipo se utiliza para calcular el costo total de las reparaciones para toda la universidad, así como para identificar los equipos con problemas. Critica ...
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