Computer applications for management
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The document provides information about computer applications for management. It defines a computer and its components which include hardware and software. It describes the characteristics of a computer as well as the typical components of computer hardware, including input, output, storage and processing devices. It also discusses software, the components of a desktop including the start menu, icons, taskbar, files and folders. Finally, it covers email and how to send an email, as well as web browsers and how to start Internet Explorer.
Computer applications for management
- 1. Computer Applications For Management Ms. C.Dharshanaa, Assistant Professor, V.V.Vanniaperumal College For Women, Virudhunagar
- 2. 1. MEANING A computer is a programmable machine designed to perform arithmetic and logical operations automatically and sequentially on the input given by the user and gives the desired output after processing. Computer components are divided into two major categories namely hardware and software. Hardware is the machine itself and its connected devices such as monitor, keyboard, mouse etc. Software’s are the set of programs that make use of hardware for performing various functions.
- 3. 2. DEFINITION A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use.
- 4. 3. CHARACTERISTCS OF COMPUTER • Speed • Accuracy • Storage • Diligence • Versatility and flexibility • Power of Remembering • No IQ • No Feeling
- 5. 4. COMPONENTS OF COMPUTER Any kind of computers consists of HARDWARE and SOFTWARE. • The hardware components of a computer system are the electronic and mechanical parts. • The software components of a computer system are the data and the computer programs.
- 6. HARDWARE • Computer hardware is the collection of physical elements that constitutes a computer system. Computer hardware refers to the physical parts or components of a computer such as the monitor, mouse, keyboard, computer data storage, hard drive disk (HDD), system unit (graphic cards, sound cards, memory, motherboard and chips), etc. all of which are physical objects that can be touched. • Hardware components are often categorised as being input, output, storage or processing components.
- 8. INPUT DEVICE • Input device is any peripheral piece of computer hardware equipment to provide data and control signals to an information processing system such as a computer or other information appliance. Input device Translate data from form that humans understand to one that the computer can work with. Most common are keyboard and mouse
- 9. PROCESSOR Central Processing Unit (CPU) • The processor is an electronic device about a one inch square, covered in plastic. Inside the square is an even smaller square of silicon containing millions of tiny electrical parts. A processor may contain 100 million transistors. It does the fundamental computing within the system, and directly or indirectly controls all the other components. • The processor is sometimes called the Central Processing Unitor CPU. A particular computer will have a particular type of processor, such as a Pentium chip or a SPARC chip. • A CPU is brain of a computer. It is responsible for all functions and processes. Regarding computing power, the CPU is the most important element of a computer system.
- 10. MEMORY This memory is of two fundamental types: main memory, and secondary memory. • Main memory is sometimes called volatile because it looses its information when power is removed. • Secondary memory is usually non-volatile because it retains its information when power is removed. (However, it needs power when information is stored into memory or retrieved from it.) C.DHARSHANAA,
- 11. OUTPUT DEVICES • An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer) which converts the electronically generated information into human-readable form. C.DHARSHANAA,
- 12. SOFTWARE • Software is a generic term for organized collections of computer data and instructions, often broken into two major categories: system software that provides the basic non-task-specific functions of the computer, and application software which is used by users to accomplish specific tasks. C.DHARSHANAA,
- 13. 5. COMPONENTS OF DESKTOP Windows 7 is an operating system that Microsoft has produced for use on personal computers. An operating system allows your computer to manage software and perform essential tasks. C.DHARSHANAA,
- 14. START MENU The Microsoft Windows Start Menu is the primary location in Windows to locate your installed programs and find any files or folders. By default, the Start Menu is accessed by clicking the Start button, located in the bottom left-hand corner of the Windows Desktop screen. C.DHARSHANAA,
- 15. ICON In computing, an icon is a pictogram or ideogram displayed on a computer screen in order to help the user navigate a computer system. The icon itself is a quickly comprehensible symbol of a software tool, function, or a data file, accessible on the system and is more like a traffic sign than a detailed illustration of the actual entity it represents. It can serve as an electronic hyperlink or file shortcut to access the program or data. C.DHARSHANAA,
- 16. TASK BAR A taskbar is an element of a graphical user interface which has various purposes. It typically shows which programs are currently running. C.DHARSHANAA,
- 17. FILE • A file is an object on a computer that stores data, information, settings, or commands used with a computer program. A file is created using a software program on the computer. For example, to create a text file you would use a text editor, to create an image file you would use an image editor, and to create a document you would use a word processor. The below characters are considered illegal and cannot be used while creating a file / : * ? “ < > | • A file is created using a software program on the computer. For example, to create a text file you would use a text editor, to create an image file you would use an image editor, and to create a document you would use a word processor. • Picture files - .bmp, .gif, .jpg • Operating system files - .dll, .exe • Text and Word processing documents - .doc, .docx, .rtf, .txt • Web Page files - .htm, .html C.DHARSHANAA,
- 18. FOLDER A folder, also called a directory, is a special type of file on your computer's file system which contains other files and folders. • Folders help you keep your files organized and separate. If you had no folders on your computer, your documents, programs, and operating system files would all be located in the same place. Folders also allow you to have more than one file with the same file name. For instance, you can have a file called Resume.doc in your My Documents folder, and another file called Resume.doc in a different folder called Resume templates. If all your files were in a single place, every file would need a unique file name. C.DHARSHANAA,
- 19. 6. E-MAIL Email is a service which allows us to send the message in electronic mode over the internet. It offers an efficient, inexpensive and real time mean of distributing information among people. C.DHARSHANAA,
- 20. Instructions to send an E-mail • Step 1: Log in to your Gmail account so that you are on the dashboard (main page) of your mail account. • Step 2: Click Compose. • Step 3: A new blank email window will open up. In the ‘To’ box, type in the email address of the recipient. • Step 4: When the sender wanted to include someone else in the email to ‘keep them in the loop’. They can do this by clicking Cc or Bcc, which will open another field. • Step 5: The subject field allows the sender to give the recipient an idea of the topic of the email, like a heading. The sender doesn’t have to put anything in the subject box, but it can help when viewing and sorting email. • Step 6: Email text can be formatted in a similar way to text in a word document. The sender can change the font style, colour and size using the formatting icons. They can also create bullet points and check the spelling of your email. Choose the formatting from the menu shown. • Step 7: Type the message in the main body field of the email. • Step 8: When the sender composes the email, click the blue Send button at the bottom of the compose window. • Step 9: The email that is sent will now be stored in the ‘Sent Mail’ folder on the Gmail dashboard. You may have to run the mouse pointer over the Inbox folder link to see the other folders. C.DHARSHANAA,
- 21. 7. WEB BROWSER A web browser, or simply "browser," is an application used to access and view websites. Common web browsers include Microsoft Internet Explorer, Google Chrome, Mozilla Firefox, and Apple Safari. • Web Browser is application software that allows us to view and explore information on the web. User can request for any web page by just entering a URL into address bar. Web browser can show text, audio, video, animation and more. It is the responsibility of a web browser to interpret text and commands contained in the web page. Earlier the web browsers were text-based while now a day’s graphical-based or voice-based web browsers are also available. C.DHARSHANAA,
- 22. STARTING INTERNET EXPLORER Internet explorer is a web browser developed by Microsoft. It is installed by default with the windows operating system however, it can be downloaded and be upgraded. To start internet explorer, follow the following steps: • Go to Start button and click Internet Explorer. C.DHARSHANAA,
- 23. WEB BROWERS • Internet Explorer Internet Explorer (IE) is a product from software giant Microsoft. This is the most commonly used browser in the universe. This was introduced in 1995 along with Windows 95 launch and it has passed Netscape popularity in 1998. • Google Chrome This web browser is developed by Google and its beta version was first released on September 2, 2008 for Microsoft Windows. Today, chrome is known to be one of the most popular web browser with its global share of more than 50%. • Mozilla Firefox Firefox is a new browser derived from Mozilla. It was released in 2004 and has grown to be the second most popular browser on the Internet. • Safari Safari is a web browser developed by Apple Inc. and included in Mac OS X. It was first released as a public beta in January 2003. Safari has very good support for latest technologies like XHTML, CSS2 etc. • Opera Opera is smaller and faster than most other browsers, yet it is full- featured. Fast, user-friendly, with keyboard interface, multiple windows, zoom functions, and more. Java and non Java-enabled versions available. Ideal for new comers to the Internet, school children, handicap and as a front-end for CD-Rom and kiosks. C.DHARSHANAA,
- 24. 8. SEARCH ENGINE A search engine is a web-based tool that enables users to locate information on the World Wide Web. Popular examples of search engines are Google, Yahoo!, and MSN Search. Search engines utilize automated software applications (referred to as robots, bots, or spiders) that travel along the Web, following links from page to page, site to site. The information gathered by the spiders is used to create a searchable index of the Web. C.DHARSHANAA,
- 25. SEARCH ENGINE COMPONENTS • Generally there are three basic components of a search engine as listed below: • Web Crawler • Database • Search Interfaces • Web crawler It is also known as spider or bots. It is a software component that traverses the web to gather information. • Database All the information on the web is stored in database. It consists of huge web resources. • Search Interfaces This component is an interface between user and the database. It helps the user to search through the database. C.DHARSHANAA,
- 26. 9. BUSINESS APPLICATION Business software or a business application is any software or set of computer programs used by business users to perform various business functions. These business applications are used to increase productivity, to measure productivity and to perform other business functions accurately. By and large, business software is likely to be developed to meet the needs of a specific business, and therefore is not easily transferable to a different business environment, unless its nature and operation is identical. C.DHARSHANAA,
- 27. EXAMPLE OF BUSINESS APP • Office mobile app is developed by Microsoft. The app offers Word, Excel, PowerPoint and OneNote. • Square register enables users to manage a business from anywhere by accepting credit cards using a free card reader and free point of sale tools. • Business Credit Applications – Documentation that is required to be filled up by an individual or business looking to open a line of credit with an institution. The documentation serves to determine the borrower’s employment status, credit history, and the capacity of credit. C.DHARSHANAA,