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Software
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Software

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Transcript

  • 1. Software
  • 2. Software It means computer instructions or data. Anything that can be stored electronically is software.
  • 3. Difference of a Software Engineer from a Programmer While a programmer creates the codes that make a program run, a software engineer creates the designs the programmer implements.
  • 4. Categories of Software Software is often divided into two categories : Operating System  Application Software
  • 5. Operating System The Operating System is the most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs.
  • 6. Operating System Without a computer operating system, a computer and software programs would be useless.
  • 7. Operating System
  • 8. Operating System Types  GUI –Graphical User Interface  Multi-user  Multiprocessing  Multitasking  Multithreading
  • 9. Graphical User Interface A GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse. Example : System7.x,Windows98,
  • 10. Multi-user A multi-user operating system allows for multiple users to use the same computer at the same time and different times. Example :Linux, Windows 2000,
  • 11. Multiprocessing An operating system capable of supporting and utilizing more than one computer processor. Example :Linux, Windows 2000,
  • 12. Multitasking An operating system that is capable of allowing multiple software processes to run at the same time. Example :Unix, Windows 2000
  • 13. Multithreading Operating systems that allow different parts of a software program to run concurrently. Example :Linux, Windows 2000, Unix
  • 14. Operating System
  • 15. Basic Tasks of an Operating System Recognizing input from the keyboard Sending output to the display screen Keeping track of files and directories on the disk Controlling peripheral devices
  • 16. Applications Software It is also called end- user programs. It includes programs that do real work for users. It is the general designation of computer programs for performing user tasks.
  • 17. Applications Software Figuratively speaking, applications software sits on top of systems software because it is unable to run without the operating system
  • 18. A layer structure showing where the operating system software and application software are situated while running on a typical desktop computer Operating System and Application Software
  • 19. Programs of an Applications Software Database Programs Games Web Browsers  Word Processing Spreadsheets
  • 20. Categories of an Application Software  Vertical Application-designed for a particular type of organization.  Horizontal Application- are the most popular and widespread in departments or companies.
  • 21. Conclusion The operating system itself can be considered application software when performing simple calculating, measuring, rendering, and word processing tasks that not used to control hardware via command- line interface or graphical user interface. This does not include application software bundled within operating systems such as a software calculator or text editor.
  • 22. Questions 1. It means computer instructions or data. Anything that can be stored electronically is called _______. a. Software b. Hardware c. Peopleware 2. Who creates the codes that make a program run? a. Software Engineer b. Programmer c. Hardware Engineer 3. These are software applications except , a. Web Browser b. Mac c. Word Processing 4. Is the most important program that runs on a computer. a. Operating System b. Application Software c. Computer 5. It contains graphics and icons and is commonly navigated by using a computer mouse. a. Graphical User Interface (GUI ) Operating System b. Multiprocessing c. Horizontal Application

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