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Computer Systems

By: Imsha Liaqat

Imsha Liaqat

on 18 January 2013

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Transcript of Computer Systems

Internal Hardware Software By: Imsha Liaqat Computer Systems Internal Hardware are the components that are built inside the computer. These are the components we cannot see until you open up the computer. What Does It Mean? Hardware refers to the physical parts of a computer. The parts can be mechanical, electrical, and magnetic. Bibliography External External Hardware is something that can be physically touched. Monitor Monitor is a device that works with a video card, which is located inside the computer case. The monitor displays images and text on the screen. Keyboard Keyboard is one of the main device that we use to communicate and enter data. There are different types of keyboards; wired, wireless, ergonomic, multimedia, and more. Almost all the keyboards are similar and can perform the same tasks. Mouse The mouse is a peripheral device, that allows you to navigate to different contents on the page. There are two types of mice, known as mechanical and optical. The mechanical mouse uses an electronic device and it is easier to clean. On the other hand the mechanical mouses uses a rolling ball to identify the movement. There are also touchpad which are most commonly found on laptops. Mechanical Mouse Optical Mouse The difference between the two Speakers Speakers are devices that output information to the user. For example, if you are watching a video or movie you are hearing the sounds from the speakers. Modern technology has become so much better that most desktop computers have speakers built-in. This is the same with laptops. excellent for music, video, and movie fans
expensive speakers have a really good quality
with external speakers you can listen to how loud you want it Same: Built-In Speakers External Speakers can perform most tasks
easier to carry your device
less money used both are different types of speakers
same function Printer Printer is a device used to output a paper copy of data or pictures. There are many types of printers. Some include, Dot Matrix, Ink-jet, and Laser. these are just some example there are ore than this as well. Scanner USB Stick Scanner is a device that reads or scans an image and converts it to a digital format. Scanners can come both in small and large sizes. When the image is scanned there is a software needed to transform the digital format to a graphic. USB sticks are very compatible and really lightweight. They are meant to transform a file from your computer to USB stick. They come in different storage space. Some include 4GB, 8GB, 16GB, 64GB and many more. They are really good device for schools. You can keep everything in their without loosing it. CPU/Processor Motherboard Power Supply Unit RAM Hard Drive Video Card Sound Card Network Card Bluetooth Card What Is It: The CPU is a machine that deliver computer programs. Sometimes, it is also referred as the brain of the computer. Function: CPU is another name for Central Processing Unit and Processor. The CPU is located in the computer case on the motherboard. The job of this machine is to carry out commands. What Is It: Motherboard is the mainframe of the computer. Its the central circuit board making up a electronic system.

Function: The motherboard gives the electric connections by which the other system communicate. What Is It: Power Supply Unit transforms power from the wall outlet to the power needed by the computer

Function: The power supply unit gives power to all the components in the computer What Is It: Hard Drive is the data center of the the computer

Function: Hard Drive is the place where software is installed. This is where your documents and other files are stored. Hard Drive is the component that even if you turn-off or unplug your computer nothing will be erased. What Is It: RAM is also known as Random Access Memory. This is a short-term memory. This is because it stores the data when needed; data is erased when the computer shuts of.

Function: RAM is used to store data if you do not want o save it. If you don't save the data then it will be lost and cannot be found anywhere. What Is It: Video Card is responsible what you see on the computer

Function: If you like playing intense graphic games, then a video card is good for you. You can also add a faster video card to your monitor. What Is It: Sound Card is what we hear from our monitor

Function: Sound Card is responsible for the sound. Most motherboards have sound card built-in, but if you want a higher quality then you can add it to the expansion slot. What Is It: Network card is a component that lets us communicate with other networks

Function: Network Card can connect with a Ethernet cable or by a wireless connection(Wi-Fi). Almost all motherboards have network card built inside it. What Is It: Bluetooth card is a component that connects with other devices

Function: A bluetooth card is used to send information to other devices by wifi or wireless connection. This is also built inside the motherboard Microsoft Windows Apple Mac OS X Linux Operating Systems Microsoft Windows were created in the mid- 1980s. Over the past few years Microsoft Windows has updated their software several times. The latest version is Windows 8. In 2012, Windows 8 was released, in 2009 Windows 7 was released. Windows Vista was released in 2007. Microsoft is the popular software as it is old and an excellent software. There are different editions to this software when upgrading. They include Home Premium, Professional and Ultimate. Apple has its own software which is known as the Mac OS. This software is preloaded in all Macs or Macintosh. The latest versions are Mac OS X. Their are different versions to that; Mountian Lion(released in 2012, Lion(2011), and Snow Leopard(2009). Mac users are 7.5% of 2013. People prefer Mac because they don't much virus, its beauty and of its popularity. Linux is the only operating system that can be modified y anyone, anywhere. Linux has advantages to it, it is "free." This means that there are different versions to this software you can choose from. The popular ones are Ubuntu, Mint, and Fedora. Linux is not popular software because not many people like it and it's not popular. Software is the instructions that tell the hardware what to do. It guides the hardware and tell it how to perform the task. Software Applications There are so many applications we use everyday that we don't even know about. Here are some: Web Browser Microsoft Word PowerPoint Excel Media Players Web Browser is a tool which can be accessed anywhere in the world. It is the main tool which we use almost everyday. Like Facebook, Google, Twitter, Hotmail, yahoo, etc. The web browser are already installed in the computer. There are different names of browsers which are Safari, Google Chrome, Firefox, and Internet Explorer. Listening to mp3 and watch movies then media players is the application for you. Windows Media Player and iTunes are the two most popular media players. Microsoft Word is an application that is used to create flyers, letter, report, and many more. The most popular word processor is Microsoft Word. PowerPoint allows us to create professional-looking presentation. Slides are used to create a presentation. Its simple, faster, and quicker. PowerPoint is mostly used for school purposes and business work. Excel is a spreadsheet which we can enter data or numerical values. The spreadsheet made up of rows and columns. Excel is a excellent tool for Math, Banking, Graphs, and Calculations. 1.Claerr, Jennifer. "What Does Hardware Mean in Computer Terms?" EHow. Demand Media, 21 Nov. 2008. Web. 14 Jan. 2013. <http://www.ehow.com/about_4612984_does-hardware-mean-computer-terms.html>. 2."Computer Basics." GCFLearnFree.org. N.p., n.d. Web. 14 Jan. 2013. <http://www.gcflearnfree.org/computerbasics>. 3.C.V.Rajan. "Advantages of Buying Computers with Built in Speakers." Helium. Helium, 25 Sept. 2010. Web. 14 Jan. 2013. <http://www.helium.com/items/1963844-advantages-of-buying-computers-with-built-in-speakers>. 4."Printer." Dictionary.com. Dictionary.com, n.d. Web. 14 Jan. 2013. <http://dictionary.reference.com/browse/printer?s=t>. 5."Types of Printers." Types of Printers. N.p., n.d. Web. 14 Jan. 2013. <http://www.escotal.com/printer.html>.
Support EasyBib! Try Premium 6."What Is a Flash Drive?" About.com Homework / Study Tips. N.p., n.d. Web. 14 Jan. 2013. <http://homeworktips.about.com/od/computertips/qt/flashdrive.htm>. 7."Idaho State University." Idaho State University. N.p., n.d. Web. 14 Jan. 2013. <http://help.isu.edu/index.php?action=knowledgebase>. 8."Internal Computer Hardware¶." Internal Computer Hardware â Introduction to Information and Communication Technology. N.p., n.d. Web. 14 Jan. 2013. <http://openbookproject.net/courses/intro2ict/hardware/internal.html>. 9."What Is PowerPoint?" What Is PowerPoint? N.p., n.d. Web. 14 Jan. 2013. <http://homepage.cs.uri.edu/tutorials/csc101/powerpoint/power.html>. 10."What Is Excel." What Is Excel. N.p., n.d. Web. 14 Jan. 2013. <http://serc.carleton.edu/introgeo/mathstatmodels/UsingXL.html>.
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