Computer Software Lecture 5

Business Information Systems- Computer Software What is software Software are programs (set of instructions) that interface with the computer to serve a specified function Task specific series of instructions What is the purpose of software Provides the user with the interface to the computer Manages resources of the computer What is Firmware This is software embedded in a chip; a combination of hardware and software Business Information Systems- Computer Software

Business Information Systems - Computer Software Types of Software Application Software Provides an interface and platform for end user tasks Systems Software Provides an interface to the management of the resources (computer systems and computer networks) Business Information Systems - Computer Software

Business Information Systems - Computer Software Kinds of Software Proprietary Software versus Open Source Software Proprietary software: this is commercial software developed for a specific task Open source software: this is software developed for a specific task whose source code is available for use and for alteration www.opensource.com Off the shelf versus Be-spoke Off the shelf: this is software that is premade for a specific purpose Be-spoke: this is software that is custom made for a specific purpose Business Information Systems - Computer Software

Business Information Systems - Computer Software Application Software General Purpose Web browsers: Interfacing with the world wide web Electronic mail: Online communication software Word processing: Document production software Spread sheet: Management of figures and numbers Database management: Data and information management Presentation Software: Lecture and presentations Personal information managers? Business Information Systems - Computer Software

Application Software – Software Suites Provide a number of application software as one suite Examples Microsoft office Lotus Smart Suite Sun Star office Apache Open Office Coral WordPerfect Office Advantages Cost reduction Compatibility of the programs within the suite Same feel across the suite Disadvantages More programs than you need Wastage of disk-space Business Information Systems - Computer Software

Business Information Systems - Computer Software Application Software Application Specific Software Business Related Accounting Transaction Processing Customer relationship management Enterprise Resource planning Electronic Commerce Science and Engineering Education Entertainment Business Information Systems - Computer Software

Business Information Systems - Computer Software Question Point What is an ERP? What are the advantages of an ERP? What are the disadvantages of an ERP? Discuss ERP in the context of a local company. http://www.aptean.com/additional-crm-and-erp-related-links-pages/erp-resources-folder/erp-system-examples Business Information Systems - Computer Software

Business Information Systems - Computer Software Systems Software Systems Management Software Operating systems Network management Database management Application Servers Management Performance and Security Monitors Systems Development Software Programming languages tools Programming languages translators CASE Tools Business Information Systems - Computer Software

Systems Software - Operating Systems The Software that manages your computer system Network Operating Systems, Single User, Multi user, Distributed, Embedded Aspects of computer system that are managed Hardware Resources Management CPU, Memory Task Management File Management Utilities Management Business Information Systems - Computer Software

Major kinds of Operating Systems and their use Microsoft Windows Most common DP Mobile version Linux – Open source Many variants Virus Free? Servers Mac OS Apple Mac Desktop Publishing Mobile Phones OS Windows, IOS, Android, Simbian, Ubuntu-Linux http://www.bbc.com/news/technology-31148661 Business Information Systems - Computer Software

Business Information Systems - Computer Software Question Point Discuss Open Source Software versus Proprietary Software as a competitive advantage tool for a growing business Business Information Systems - Computer Software

Programming Languages Programming is an organized way of giving the computer a set of instructions to carry out prescribed tasks. Business Information Systems - Software Systems

Programming Languages 1GL Machine Languages – 0 & 1 2GL Assembler Languages – instruction set 3GL High Level languages – Mathematical & Procedural 4GL Fourth generation Languages - Conversational Statements 5GL Object oriented languages – Combination of data and instructions Business Information Systems - Software Systems

Business Information Systems - Software Systems Web Languages HTML – Hypertext Markup Language XML – eXtensible Markup Language Java Business Information Systems - Software Systems

Business Information Systems - Software Systems The organization’s life is in its data and its livelihood is in its knowledge Data Information Knowledge Business Information Systems - Software Systems

Business Information Systems - Software Systems Organization of data Database File Record Field Character Business Information Systems - Software Systems

Business Information Systems - Software Systems Organization of data Character – basic building block (alphanumerical or special character) Field – a group of related characters Record – related fields File – a group of related records Database – integrated collection of logically related data elements Business Information Systems - Software Systems