Tuesday, December 21, 2010

Specialized application software

Audio editing software
is a computer application for audio editing, i.e. manipulating digital audio. It allows you to Record Audio from one or more inputs can be captured and stored in the computer's memory as digital audio. Edit The start time, stop time, and duration of any sound on the audio timeline can be altered.Mix Multiple sound sources can be combined at various volume levels to a single source. Playback Sound (often after being mixed) can be sent to one or more outputs; commonly speakers, additional processors, or a recording medium.









Bitmap image
is a type of graphic composed of pixels (picture element) in a grid. Each pixel or "bit" contains color information for the image. Bitmap graphics formats have a fixed resolution which means that resizing a bitmap graphic can result in distortion and jagged edges. Some common bitmap formats are GIF, JPG or JPEG, TIFF, PNG, PICT, PCX, and BMP. Photo-editors or image-editing graphics software such as Adobe Photoshop and Corel Photo-Paint are designed for creating and editing bitmap graphics.












Desktop publishing programe ( DTP)
combines a personal computer and WYSIWYG page layout software to create publication documents on a computer for either large scale publishing or small scale local multifunction peripheral output and distribution.
The term "desktop publishing" is commonly used to describe page layout skills. However, the skills and software are not limited to paper and book publishing. The same skills and software are often used to create graphics for point of sale displays, promotional items, trade show exhibits, retail package designs and outdoor signs.









HTML editors
is a software application for creating web pages. Although the HTML markup of a web page can be written with any text editor, specialized HTML editors can offer convenience and added functionality. For example, many HTML editors work not only with HTML, but also with related technologies such as CSS, XML and JavaScript or ECMAScript. In some cases they also manage communication with remote web servers via FTP and WebDAV, and version management systems such as CVS or Subversion.
















Image editors
Software that allows images to be edited and also converted to different graphics formats. Image editors typically deal with only bitmapped images such as GIFs, JPEGs and BMPs; however, some editors support both bitmaps and illustrations (see vector graphics). Common functions are manually cropping and resizing the image and using "filters" to adjust brightness, contrast and colors. A myriad of filters are available for special effects.















Victor image
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.











Multimedia
As the name implies, multimedia is the integration of multiple forms of media. This includes text, graphics, audio, video, etc. For example, a presentation involving audio and video clips would be considered a "multimedia presentation." Educational software that involves animations, sound, and text is called "multimedia software." CDs and DVDs are often considered to be "multimedia formats" since they can store a lot of data and most forms of multimedia require a lot of disk space.


Basic application software

Graphical user interface ( GUI )
User interface based on graphics (icons and pictures and menus) instead of text; uses a mouse as well as a keyboard as an input device It's also  refers to the graphical interface of a computer that allows users to click and instil objects with a mouse instead of entering text at a command line. Two of the most popular operating systems, Windows and the Mac OS, are GUI-based.











Word processor
Word processing program, does exactly what the name implies. It processes words. It also processes paragraphs, pages, and entire papers. Some examples of word processing programs include Microsoft Word, WordPerfect (Windows only), AppleWorks (Mac only), and OpenOffice.org.













Spread sheet
 is a computer application that simulates a paper, accounting worksheet. It displays multiple cells that together make up a grid consisting of rows and columns, each cell containing alphanumeric text, numeric values or formulas. A formula defines how the content of that cell is to be calculated from the contents of any other cell (or combination of cells) each time any cell is updated. Spreadsheets are frequently used for financial information because of their ability to re-calculate the entire sheet automatically after a change to a single cell is made.













Database management system (DBMS)
A collection of programs that enables you to store, modify, and extract information from a database. There are many different types of DBMSs, ranging from small systems that run on personal computers to huge systems that run on mainframes. The following are examples of database applications:


  • computerized library systems



  • automated teller machines



  • flight reservation systems

















  • Utility suites
    A Utility Suite is a collection of different tools all packaged into one easy to use tool that optimize you computer.Not all utilities though do the same thing nor have the same functions so your choices must reflect what you need in a utility package.These tools usually include items such as History cleaner; Temp file cleaner; Registry cleaner; Internet usage tracks cleaner;Disk defragment; Optimizer tools; System diagnostics; File undelete; Process Explorer; Uninstall tool; File duplication detector; and sometimes even an Anti-Virus/Firewall.


    Tuesday, December 14, 2010

    The Internet,web and elctronic commerce

    Javascript A famous scripting and open language that is widely supported in Web browsers and other Web tools. It adds interactive functions to HTML pages, which are otherwise static, since HTML is a display language, not a programming language. JavaScript is easier to use than normal Java, but not as powerful and deals mainly with the elements on the Web page. Java source code is compiled into a bytecode, stored in a separate documents, which the Web browser downloads and executes separately from an HTML pages.
    





    Applet is a program you can find it in the Java programming language that can be included in an HTML page, much in the same way an image is included in a page. When you use a Java technology-enabled browser to view a page that contains an applet, the applet's code is transferred to your system and executed by the browser's Java Virtual Machine (JVM).












    Filters is a computer program to process a data stream . And some operating systems such as Unix are rich with filter programs. Even Windows has some simple filters built in to its command shell, most of which have significant enhancements relative to the similar filter commands that were available in MS-DOS. Just as in Unix, such a filter usually gets most of its data from standard input (the main input stream) and writes its main results to standard output (the main output stream).
















    Plug-ins are programs that “plug into” a host program for additional functionality. Plug-ins allow a third-party application to be used within the host program, acting as a kind of liaison or bridge. There are many kinds of plug-ins, but one that many Web surfers will be familiar with is the Acrobat® Reader® plug-in for Web browsers. This allows .pdf files to be read within the browser window. Other popular browser plug-ins include QuickTime® to view movies, and the Flash® plug-in to view Flash scripts.














    Internet security suites it's necessary program when it involves protecting the computer. The web has everything from viruses to spyware to ad and malware and it's become increasingly difficult to seek out a website that's not putting one thing onto your computer. Therefore, it's vital to guard your computer and protect your privacy and info whereas surf the web, like Norton and MacAfee.













    Wiki is a piece of server software that allows users to freely create and edit Web page content using any Web browser. Wiki supports hyperlinks and has a simple text syntax for creating new pages and crosslinks between internal pages on the fly.Wiki is unusual among group communication mechanisms in that it allows the organization of contributions to be edited in addition to the content itself.










    Uniform Resource Locator (URL) is a Uniform Resource Identifier (URI) that specifies where an identified resource is available and the mechanism for retrieving it. In popular usage and in many technical documents and verbal discussions it is often incorrectly used as a synonym for URI. The best-known example of the use of URLs is for the addresses of web pages on the World Wide Web, such as http://www.example.com/.


     









     
    File Transfer Protocol (FTP) is a standard network protocol used to copy a file from an one host to another over a TCP/IP-based network, such as the Internet. FTP is built on a client-server architecture and utilizes separate control and data connections between the client and server. FTP users may authenticate themselves using a clear-text sign-in protocol but can connect anonymously if the server is configured to allow it.

    Tuesday, December 7, 2010

    careers in IT





    Webmaster The job of a webmaster are multi fold. webmaster should be able to work as a database managment and manage any database for the companies. For example, if the database contains information about the products of the company, the webmaster should update the database if new products are added to the company's catalogue. The webmaster should also check that the website has no bugs, so a customer does not get an error if he is trying to do a transaction.Also webmaster also controls the security of the website,so that hackers cannot access data.


    Computer support specialists help people that have computer problems. Some computer support specialists called help-desk technicians field phone calls or e- mails or make house calls for people who are having difficulty with a particular piece of computer hardware or software. Most of these people who need help have no technical expertise. The support specialist asks the user to describe the problem as well as the commands that were entered or steps taken that led up to solve problem.






    Technical writers can explain in simple language scientific and technical ideas that are difficult for the average reader to understand. Some write articles and reports on current trends in fields such as science and engineering. Many technical writers in this specialty are former scientists and technicians, but others work in nonscientific fields.Technical writers may be employed to write policies and procedures for any type of operation from banking to shipping.










    Software engineer a is a killed professional focused on the design and made of software. They may or may not actually code. Because they are interacting with both business functions and programmers, Software Engineers should have excellent communication skills and should enjoy working in a team. They will often have to explain business functions to programmers and technology restraints to non-technical business managers.





















    Network administrator is responsible for the smooth, efficient, and secure of computer networks. While some administrators create networks from damage, that's not in the network administrator job description. In general, these IT professionals configure and administer existing networks rather than designing them from the ground up. Typical duties include customizing the network to match an organization's needs such as by adding software and hardware, monitoring performance, troubleshooting crashes, logging errors, and helping users with network issues.





















    Systems analyst do research on any reported problem, plans and proposes a solutions, effect the software and systems  and coordinates the problem solving process and ensures that the business standards and requirements are met. An analyst is familiar with multiple approaches to solve a problem and will choose the most appropriate one out of them. They are also quite familiar with a host of computer programming languages. systems analysts are a kind of link between IT professionals and vendors. This is mostly true in case of information systems analyst job description.

















    Programmer responsible to correct errors by making  changes and then rechecking the program to ensure that the desired results are produced.Conduct trial runs of programs and software applications to be sure they will produce the desired information and that the instructions are correct.also he should write, update, and maintain computer programs or software packages to handle specific jobs, such as tracking inventory, storing or retrieving data, or controlling other equipment.