Software
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This document discusses software, operating systems, and application software. It defines software as computer instructions or data that can be stored electronically. It explains that operating systems allow other programs to run by performing basic tasks like recognizing input/output and controlling devices. Common types of operating systems include graphical user interfaces, multi-user, multiprocessing, multitasking, and multithreading. Application software includes programs that perform user tasks like games, web browsers, and office productivity software. Application software relies on the operating system to run.
Software
- 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. 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
- 6. 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.
- 7. Operating System Without a computer operating system, a computer and software programs would be useless.
- 9. Operating System Types GUI –Graphical User Interface Multi-user Multiprocessing Multitasking Multithreading
- 10. Graphical User Interface A GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse. Example : System7.x,Windows98,
- 11. 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,
- 12. Multiprocessing An operating system capable of supporting and utilizing more than one computer processor. Example :Linux, Windows 2000,
- 13. Multitasking An operating system that is capable of allowing multiple software processes to run at the same time. Example :Unix, Windows 2000
- 14. Multithreading Operating systems that allow different parts of a software program to run concurrently. Example :Linux, Windows 2000, Unix
- 15. Operating System
- 16. 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
- 17. 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.
- 18. Applications Software Figuratively speaking, applications software sits on top of systems software because it is unable to run without the operating system
- 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