 This is a collection of instruction, intended to produce a particular result.

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Presentation transcript:

 This is a collection of instruction, intended to produce a particular result.

 There are two types of software: ◦ System Software ◦ Application Software

 System Software controls the operation of the computer itself.

 Basic Input and Output  Operating System  Utilities  Software Development

 This controls the operation of hardware items such as keyboard, mouse, USB flash drive, hard drive etc.

 This control the overall function of the computer, so that all parts work together, and you can start up applications software. ◦ Windows 2000, XP, 7, 8, 10 ◦ Mac Os8, Mac Os10, System 7 ◦ ubuntu, Mint, OpenSUSE

Windows 10 example

Ubuntu example

Mac OSX example

 Utilities are programs that carry out one specialist function, which help the computer to work smoothly.  Examples ◦ Backups program ◦ Antivirus ◦ Disk clean up

 System software also include programs that allows you to create Application programs for specific operating system software.

 Application software enables the computer to perform some additional useful function. ◦ Example: Microsoft word, Microsoft Excel, Microsoft PowerPoint, Microsoft Access, Photoshop and etc.

 General Purpose Software  Special Purpose Software  Custom- written Software

 This allows a wide range of activities to be carried out. This is very economical. It is the most commonly used software in the world.  An example is Microsoft word, which allow you to create different types of documents.

 Customization – a company that cannot afford to have it’s own custom-written software might decide to customize a general purpose software.  Integration – Many Software companies offer groups of applications that can work together to offer a wide range of functions. ◦ Example: Microsoft office(which include, Microsoft word, excel, PowerPoint, publisher etc.) It is easy to copy information between them.

 This is written to perform a single type of task. This is more expensive than General purpose software. ◦ Architects use a program call AUTOCAD to create building designs.

 This is created for a single customer by a computer programmer(or team of programmers). This is very expensive.  A large company such as a bank may have there own specially written software.

 Click herehere

 Draw a family tree for software ◦ Example below