Part II IT Infrastructure (Computer Software)

Transcription

1 Part II IT Infrastructure (Computer Software) DCS COMSATS Institute of Information Technology Rab Nawaz Jadoon Assistant Professor COMSATS IIT, Abbottabad Pakistan Management Information Systems (MIS)

2 Things to discuss IT Infrastructure: 2

3 Software, also called a program, Computer Software consists of a series of related instructions, organized for a common purpose, that tells the computer what tasks to perform and how to perform them. Two categories of software, System Software That are used to run the Hardware/machine For example, Operating Systems, Device Drivers, Application Software designed to make users more productive and or assist them with personal tasks. For example, word processing software, spreadsheet software, database software, and presentation software, web browsers etc. 3

4 PC Bootup Process 4

5 Installing and running a program 5

6 Computer System Components User Application software System Software Hardware 6

7 Modern Operating Systems Android BSD ios Symbian Mobile phone Popular Modern Operating Systems in Market MAC OS X Linux z/os MS Windows 7

8 Volunteer Presenter Who will present? Window Installation procedure in the next class. 8

9 Desktop Productivity tools Today, businesses have access to an array of tools for developing their application software. These includes Traditional programming languages C, C++, Visual Basic, and COBOL Fourth-generation languages PC software tools, query languages, report generators, graphics languages, application generators, and application software packages Application software packages Java, C++, Visual Studio.Net, ORACLE etc. Software for developing Internet applications HTML, XML, ASP.Net, PHP MySql, Java etc Software for enterprise integration. MySAP ERP, ORACLE, PeopleSoft HCM. 9

10 A software package Software Packages is a prewritten, precoded, commercially available set of programs that eliminates the need for individuals or organizations to write their own software programs for certain functions. There are software packages for system software, but most package software is application software. 10

11 Software for the Web There are a number of software tools that that businesses use to build Web sites and applications that run on the Web. Java and Ajax are used for building applications that run on the Web, and HTML is used for creating Web pages. Java Java is an operating system-independent, processorindependent, object-oriented programming language that has become a leading interactive programming environment for the Web. Nearly all Web browser software has a Java platform built in. The Java platform has migrated into cell phones, automobiles, music players, game machines, and, finally, into set-top cable television systems serving interactive content. 11

12 Ajax (Asynchronous JavaScript and XML) Cont Web development technique for creating interactive Web applications. Ajax allows a client and server to exchange small pieces of data behind the scene so that an entire Web page does not have to be reloaded each time the user requests a change. HTML (Hypertext Markup Language) is a page description language for specifying how text, graphics, video, and sound are placed on a Web page and for creating dynamic links to other Web pages and objects. 12

13 Software Trends Today there are many more sources for obtaining software and many more capabilities for users to create their own customized software applications. Expanding use of open source software and cloudbased software tools and services exemplify this trend. Open Source Software open source software is developed by a community of programmers around the world, who make their programs available to users under free and open source distribution. 13

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