Recent Changes

Friday, May 16

  1. page V edited ... Most video cards support the OpenGL and DirectX libraries. These libraries include commands fo…
    Most video cards support the OpenGL and DirectX libraries. These libraries include commands for manipulating graphics that programmers can include in their code. Some of these commands may include moving or rotating an object, morphing polygons, or casting light and creating shadows. By using standard OpenGL or DirectX functions, it makes it easier for developers to create graphically-oriented programs. Of course, it also makes it necessary for the computer to include a supported video card in order for the program to run.
    Video cards are typically installed in either the PCI or AGP slots in the back of a computer. Most computers come with a video card installed in one of these slots, which means it can be
    Virtual Memory:
    Memory is hardware that your computer uses to load the operating system and run programs. It consists of one or more RAM chips that each have several memory modules. The amount of real memory in a computer is limited to the amount of RAM installed. Common memory sizes are 256MB, 512MB, and 1GB.

    Like a biological virus, a computer virus is something you don't want to get. Computer viruses are small programs or scripts that can negatively affect the health of your computer. These malicious little programs can create files, move files, erase files, consume your computer's memory, and cause your computer not to function correctly. Some viruses can duplicate themselves, attach themselves to programs, and travel across networks. In fact opening an infected e-mail attachment is the most common way to get a virus.
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Thursday, May 15

  1. page M edited ... Madware: Madware is a type of aggressive advertising that affects smartphones and tablets. Th…
    Madware is a type of aggressive advertising that affects smartphones and tablets. The name, which is a portmanteau combining the words mobile and adware, was coined by the security vendor Symantec to describe a type of intrusive advertising that currently affects Android smarphones and tablets.
    A mainframe is an ultra high-performance computer made for high-volume, processor-intensive computing. They are typically used by large businesses and for scientific purposes. You probably won't find a mainframe in any household. In the hierarchy of computers, mainframes are right below supercomputers, the most powerful computers in the world. (Which is why they are aptly named "supercomputers.") Yet a mainframe can usually execute many programs simultaneously at a high speed, whereas supercomputers are designed for a single process. Currently, the largest manufacturers of mainframes are IBM and Unisys.

    Matrix: is a grid used to store or display data in a structured format.
    Modem: The word modem is actually short for Modulator/Demodulator. (There's something you can really impress your friends with). A modem is a communications device that can be either internal or external to your computer. It allows one computer to connect another computer and transfer data over telephone lines. The original dial-up modems are becoming obsolete because of their slow speeds and are being replaced by the much faster cable and DSL modems.
    Motherboard: The motherboard is the main circuit board of your computer and is also known as the mainboard or logic board. Attached to the motherboard, you'll find the CPU, ROM, memory RAM expansion slots, PCI slots, and USB ports. It also includes controllers for like the hard drive, DVD drive, keyboard, and mouse. Basically, it is what makes everything in your computer work together.
    A mouse is a small device that a computer user pushes across a desk surface in order to point to a place on a display screen and to select one or more actions to take from that position
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  2. page O edited ... Stands for "Organization for the Advancement of Structured Information Standards." T…
    Stands for "Organization for the Advancement of Structured Information Standards." To someone backpacking through the Sahara, this is not the type of OASIS you want to see. But is it a welcome sight in the computer science world. OASIS is a non-profit, global consortium that supports the development and adoption of e-business standards.
    While it won't quench your thirst in the middle of the desert, OASIS does provide several useful technology standards. Common standards regulated by the OASIS consortium include protocols, file formats, and markup languages. Hardware and software companies often work with OASIS to develop and institute standards that are efficient and effective.
    OEM- Stands for "Original Equipment Manufacturer." This refers to a company that produces hardware to be marketed under another company's brand name.
    OOP: Stands for "Object-Oriented Programming." OOP refers to a programming methodology based on objects, instead of just functions and procedures. These objects are organized into classes, which allow individual objects to be group together. Most modern programming languages including Java, C/C++, andPHP, are object-oriented languages, and many older programming languages now have object-oriented versions..
    An "object" in an OOP language refers to a specific type, or "instance," of a class. Each object has a structure similar to other objects in the class, but can be assigned individual characteristics. An object can also call functions, or methods, specific to that object. For example, the source codeof a video game may include a class that defines the structure of characters in the game. Individual characters may be defined as objects, which allows them to have different appearances, skills, and abilities. They may also perform different tasks in the game, which are run using each object's specific methods.
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  3. page S edited ... Skyscraper ads come in two standard sizes -- 120 pixels wide by 600 pixels high (120x600) and …
    Skyscraper ads come in two standard sizes -- 120 pixels wide by 600 pixels high (120x600) and 160 pixels wide by 600 pixels high (160x600). They can contain text advertisements, images, or animations. When users click on a skyscraper ad, they are redirected to the advertiser's website
    Static Website: A static website contains Web pages with fixed content. Each page is coded in HTML and displays the same information to every visitor. Static sites are the most basic type of website and are the easiest to create. Unlike dynamic websites, they do not require any Web programming or database design. A static site can be built by simply creating a few HTML pages and publishing them to a Web server.
    Storage Networking: Storage networking is the practice of linking together storage devices and connecting them to other IT networks. Storage networks provide a centralized repository for digital data that can be accessed by many users, and they use high-speed connections to provide fast performance.
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Wednesday, May 14

  1. page N edited ... A new user of a technology, such as a computer, a certain computer program, or the Internet, i…
    A new user of a technology, such as a computer, a certain computer program, or the Internet, is often referred to as a "newbie." The term originated sometime around 1990 and supposedly comes from the English phrase, "new boy," which refers to someone in their first year of public schooling. In online chat rooms, veteran net users like to call anybody who asks an easy question a newbie. If you ever get called a newbie, just shake it off -- everybody has to learn sometime.
    each other.
    Any system or device connected to a network is also called a node. For example, if a network connects a file server, five computers, and two printers, there are eight nodes on the network. Each device on the network has a network address, such as a MAC address, which uniquely identifies each device. This helps keep track of where data is being transferred to and from on the network.

    The high-speed part of a common chipset architecture in a computer. The Northbridge is the controller that interconnects the CPU to memory via the frontside bus (FSB). It also connects peripherals via high-speed channels such as AGP and PCI Express. The Northbridge may include a display controller, obviating the need for a separate display adapter.
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Friday, May 9

  1. page B edited ... Just like the human backbone carries signals to many smaller nerves in the body, a network bac…
    Just like the human backbone carries signals to many smaller nerves in the body, a network backbone carries data to smaller lines of transmission. A local backbone refers to the main network lines that connect several local area networks (LANs) together. The result is a wide area network (WAN) linked by a backbone connection.
    The Internet, which is the ultimate wide area network, relies on a backbone to carry data over long distances. The Internet backbone consists of several ultra-highbandwidth connections that link together many different nodes around the world. These nodes route incoming data to smaller networks in the local region. The fewer "hops" your data needs to make before reaching the backbone, the faster it will get sent to the destination. This is why many Web hosts and ISPs have direct connections to the Internet backbone.
    A backlink is an incoming link from an external website to specific webpage. For example, if you publish a webpage and 20 other websites link to it, your webpage has 20 backlinks. Links to the page from within your own website are not included in the backlink total.
    Web developers benefit from backlinks (or "inlinks") in two different ways — direct traffic and search result placement. As more links to a specific webpage are published on external sites, there is greater potential for traffic to be generated from other websites. This is called direct traffic. By increasing direct traffic, a website can gradually grow its presence on the Weband generate a steady stream of visitors from other websites.
    While direct traffic is helpful, most websites generate the majority of their traffic through search engines. Since search engines use backlinks as an important part of the their algorithms for search result placement, external links are important for good search ranking. Therefore, generating backlinks has become common practice for search engine optimization, or SEO. The more backlinks a webpage has, the better the chance that the page will rank highly in search results for relevant keywords. If a website has many pages that have backlinks, the overall number of incoming links may help increase the ranking of all pages within the website. While most backlinks point to a website's home page, incoming links to other pages within the website are beneficial as well

    The technical definition of "bandwidth" involves the difference between two frequencies and the amount of information that can flow through a channel, as expressed in cycles per second (hertz). It also refers to the range of frequencies (not the speed), or the measured amount of information, that can be transmitted over a connection: the higher the frequency, the higher the bandwidth and the greater the capacity of a channel to carry information.
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    11:50 am
  2. page V edited Vector Graphics: Unlike JPEGs, GIFs, and BMP images, vector graphics are not made up of a grid of…
    Vector Graphics:
    Unlike JPEGs, GIFs, and BMP images, vector graphics are not made up of a grid of pixels. Instead, vector graphics are comprised of paths, which are defined by a start and end point, along with other points, curves, and angles along the way. A path can be a line, a square, a triangle, or a curvy shape. These paths can be used to create simple drawings or complex diagrams. Paths are even used to define the characters of specific typefaces.

    Video Card:
    Most of the processing done on a computer is done via the computer's central processing unit, or CPU. So in order to give the CPU a break and help it run more efficiently, a video card can be used to process the graphics portion of the processing load. Because most of today's programs are graphically oriented, the video card can help almost any program run more efficiently. However, the difference in performance is especially noticeable in image editing applications and 3D games.
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    11:40 am
  3. page C edited ... CMOS: Stands for "Complementary Metal Oxide Semiconductor." This technology is typi…
    Stands for "Complementary Metal Oxide Semiconductor." This technology is typically used in making transistors. The "complementary" part of the term unfortunately does not mean these semiconductors are free. Instead, it refers to how they produce either a positive or negative charge. Because CMOS-based transistors only use one charge at a time, they run efficiently, using up very little power. This is because the charges can stay in one state for a long period of time, allowing the transistor to use little or no power except when needed. Because of their wonderful efficiency, processors that use CMOS-based transistors can run at extremely high speeds without getting too hot and going up in flames. You may also find CMOS memory in your computer, which holds the date and time and other basic system settings. The low power consumption of CMOS allows the memory to be powered by a simple Lithium battery for many years.
    The name "codec" is short for "coder-decoder," which is pretty much what a codec does. Most audio and video formats use some sort of compression so that they don't take up a ridiculous amount of disk space.

    Contextual Menu: A contextual menu is a pop-up menu that appears when you right-click on a certain area of the screen. It is "contextual" because the menu options are relevant to what you click on. While not all programs support contextual menus, most modern operating systems and applications include them as part of the interface design.
    CPU: CPU is the abbreviation for central processing unit. The CPU is the brains of the computer where most calculations take place. In terms of computing power, the CPU is the most important element of a computer system. The CPU itself is an internal component of the computer. Modern CPUs are small and square and contain multiple metallic connectors or pins on the underside. The CPU is inserted directly into a CPU socket, pin side down, on the motherboard.
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Thursday, May 8

  1. page R edited ... RGB: Stands for "Red Green Blue." It refers to the three hues of light (red, green…
    Stands for "Red Green Blue." It refers to the three hues of light (red, green, and blue, for those of you that are a little slow), that can mix together to form any color. When the highest intensity of each color is mixed together, white light is created. When each hue is set to zero intensity, the result is black. TVs and computer monitors use RGB to create the colorful images you see on the screen. In print, however, the 4 colors -- cyan, yellow, magenta, and black (CYMK) -- are used to create color images.
    Router: Rickrolling:
    Rickrolling is an Internet meme[1] involving the music video for the 1987 Rick Astley song "Never Gonna Give You Up". The meme is a bait and switch; a person provides a hyperlink which is seemingly relevant to the topic at hand, but actually leads to Astley's video. The link can be masked or obfuscated in some manner so that the user cannot determine the true destination of the link without clicking. People led to the music video are said to have been rickrolled. Rickrolling has extended beyond web links to playing the video or song disruptively in other situations, including public places, such as a live appearance of Astley himself in the 2008 Macy's Thanksgiving Day Parade in New York.[1] The meme helped to revive Astley's career.[2]

    This is a hardware device that routes data (hence the name) from a local area network (LAN) to another network connection. A router acts like a coin sorting machine, allowing only authorized machines to connect to other computer systems. Most routers also keep log files about the local network activity.
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    3:21 pm

Wednesday, May 7

  1. page P edited ... Pop-Up Window- A pop-up window is a type of windowthat opens without the user selecting "…
    Pop-Up Window-
    A pop-up window is a type of windowthat opens without the user selecting "New Window" from a program's File menu.
    Though software plug-ins might not make your room smell as nice as the scented ones you stick in an outlet, they are still useful. A software plug-in is an add-on for a program that adds functionality to it. For example, a Photoshop plug-in (such as Eye Candy) may add extra filters that you can use to manipulate images. A browser plug-in (such as Macromedia Flash or Apple QuickTime) allows you to play certain multimedia files within your Web browser. VST plug-ins add effects for audio recording and sequencing programs such as Cubase and Logic Audio.
    Processor- The Central Processing Unit (CPU) or Processor is the part of a computer that carries out the instructions of a computer program, and is the primary element carrying out the computers function.
    While it may seem like an innocuous act, pirating software is the same as stealing. Software companies often invest thousands or even millions of dollars into creating the programs they sell. The income from selling these programs is what allows companies to produce the software and to continue improving the programs we use. Just because it is possible to copy a software program does not mean it is OK. Installing a commercial program from an illegal copy is the same thing as walking out of a store with the program and not paying for it.
    While there are some programs that are free to use (such as shareware and freeware programs), it is important to pay for commercial software. You can avoid software piracy by only downloading software from authorized sources and making sure that you have valid software licenses for all the programs you use. Remember that paying for software programs supports the software industry, which is good for all of us!
    Stands for "Point to Point Protocol." It is the Internet standard for dial-up modem connections. PPP is a set of rules that defines how your modem exchanges packets of data with other systems on the Internet. If you connect to your ISP with a dial-up modem, you are most likely using PPP.

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