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MIS 105 LECTURE 1 INTRODUCTION TO COMPUTER HARDWARE CHAPTER REFERENCE- CHP. 1.

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1 MIS 105 LECTURE 1 INTRODUCTION TO COMPUTER HARDWARE CHAPTER REFERENCE- CHP. 1

2 COMPUTER A computer is an electronic device, operating under the control of instructions stored in its own memory, which can accept, store, process, and output data according to a set of specified rules. A computer is an electronic device, operating under the control of instructions stored in its own memory, which can accept, store, process, and output data according to a set of specified rules.

3 Data and Information Data – Streams of raw facts that are more comprehensible by computer systems. Data – Streams of raw facts that are more comprehensible by computer systems. Information – Data that has been organized and arranged in a form that is easy for people to understand. Information – Data that has been organized and arranged in a form that is easy for people to understand.

4 INPUT/OUTPUT Computers process data - INPUT into information – OUTPUT according to specific instructions. Computers process data - INPUT into information – OUTPUT according to specific instructions.

5 INFORMATION PROCESSING CYCLE The process of input, output and storage activities is referred to as the information processing cycle. Communication between computer and information systems is also a part of the information processing cycle. The process of input, output and storage activities is referred to as the information processing cycle. Communication between computer and information systems is also a part of the information processing cycle.

6 INPUT DEVICE Any hardware component that allows a user to enter data and instructions into a computer system. Any hardware component that allows a user to enter data and instructions into a computer system.

7 OUTPUT DEVICE Any hardware component that is used to convey information. Any hardware component that is used to convey information.

8 COMMUNICATIONS DEVICE Any hardware component that enables a computer to send and receive data, instructions and information to and from one or more computers. Any hardware component that enables a computer to send and receive data, instructions and information to and from one or more computers.

9 SYSTEM UNIT-CPU The system unit is the actual case that contains the electronic components of a computer that are used to process data. CPU – Central Processing Unit/Processor. The system unit is the actual case that contains the electronic components of a computer that are used to process data. CPU – Central Processing Unit/Processor. Motherboard – Every piece of hardware inside the System Unit/CPU is connected to a circuit board called the Motherboard. Motherboard – Every piece of hardware inside the System Unit/CPU is connected to a circuit board called the Motherboard. Processor – The main electronic component that interprets and executes the basic instructions that operate the computer. Processor – The main electronic component that interprets and executes the basic instructions that operate the computer. Memory – The electronic component that stores instructions waiting to be executed and data that is needed by those instructions Memory – The electronic component that stores instructions waiting to be executed and data that is needed by those instructions Storage Device – Storage holds data, instructions and information for future use. Storage Device – Storage holds data, instructions and information for future use. Permanent and temporary Storage Devices. Permanent and temporary Storage Devices. Power Supply – The electronic component that powers the computer system. Power Supply – The electronic component that powers the computer system.

10 DISCUSSION Advantages and disadvantages of using computers Advantages and disadvantages of using computers What are the advantages of using computers? What are the advantages of using computers? What are the disadvantages of using computers? What are the disadvantages of using computers?

11 MIS 105 LECTURE 2 TYPES OF COMPUTERS CHAPTER REFERENCE- CHP. 1

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25 MIS 105 LECTURE 4 INTRODUCTION TO COMPUTER SOFTWARE CHAPTER REFERENCE- CHP. 2

26 WHAT IS SOFTWARE ? Is the planned, step-by-step set of instructions stored in a computer program that is required to convert data into information Is the planned, step-by-step set of instructions stored in a computer program that is required to convert data into information Software is what runs your computer Software is what runs your computer Programming – the designing, writing, testing and implementation of computer software Programming – the designing, writing, testing and implementation of computer software CAN ANY SOFTWARE RUN ON ANY COMPUTER? CAN ANY SOFTWARE RUN ON ANY COMPUTER? IT IS IMPORTANT TO HAVE AN IDEA OF THE KIND OF SOFTWARE WE WILL BE USING BEFORE BUYING OUR COMPUTER? IT IS IMPORTANT TO HAVE AN IDEA OF THE KIND OF SOFTWARE WE WILL BE USING BEFORE BUYING OUR COMPUTER?

27 APPLICATIONS SOFTWARE & SYSTEMS SOFTWARE APPLICATIONS SOFTWARE – is software that users apply to real world tasks i.e. software that is used to accomplish personal & business tasks. APPLICATIONS SOFTWARE – is software that users apply to real world tasks i.e. software that is used to accomplish personal & business tasks. SYSTEMS SOFTWARE – is one of the platforms for applications software. SYSTEMS SOFTWARE – is one of the platforms for applications software.

28 TYPES OF APPLICATION SOFTWARE CUSTOM SOFTWARE – software that is specifically designed for a particular organization. CUSTOM SOFTWARE – software that is specifically designed for a particular organization. HOW DO YOU BUY CUSTOM SOFTWARE? HOW DO YOU BUY CUSTOM SOFTWARE? COMMERCIAL/PACKAGED SOFTWARE – Software that is specifically designed for a particular PURPOSE. COMMERCIAL/PACKAGED SOFTWARE – Software that is specifically designed for a particular PURPOSE. HOW DO YOU BUY COMMERCIAL SOFTWARE? HOW DO YOU BUY COMMERCIAL SOFTWARE?

29 ACQUIRING SOFTWARE FREEWARE – is software that is free for everybody. FREEWARE is COPYRIGHTED i.e. the owner can place restrictions on its use. FREEWARE – is software that is free for everybody. FREEWARE is COPYRIGHTED i.e. the owner can place restrictions on its use. What are the advantages and disadvantages of freeware? What are the advantages and disadvantages of freeware?

30 TYPES OF FREEWARE OPEN SOURCE SOFTWARE – a freeware program is normally distributed in a machine- readable format that is unreadable by humans. Open source software is released for programmers with the source code available i.e. the software can be altered completely e.g. Linux software. OPEN SOURCE SOFTWARE – a freeware program is normally distributed in a machine- readable format that is unreadable by humans. Open source software is released for programmers with the source code available i.e. the software can be altered completely e.g. Linux software. PULBIC DOMAIN SOFTWARE – is software that is NOT copyrighted. PULBIC DOMAIN SOFTWARE – is software that is NOT copyrighted. WHAT IS THE DIFFERENCE BETWEEN OPEN SOURCE AND PUBLIC DOMAIN SOFTWARE? WHAT IS THE DIFFERENCE BETWEEN OPEN SOURCE AND PUBLIC DOMAIN SOFTWARE?

31 SHAREWARE SHAREWARE – is software that is FREE for a limited time only. SHAREWARE – is software that is FREE for a limited time only. WHAT ARE THE COMMON RESTRICTIONS IN SHAREWARE? WHAT ARE THE COMMON RESTRICTIONS IN SHAREWARE? WHAT ARE THE ADVANTAGES AND DISADVANTAGES OF SHAREWARE? WHAT ARE THE ADVANTAGES AND DISADVANTAGES OF SHAREWARE? IS SHAREWARE POPULAR? IS SHAREWARE POPULAR?

32 PURCHASING SOFTWARE SITE LICENSE – the license to buy ONE copy of a software and install it on several computers. The number of computers depends on the terms of the license. SITE LICENSE – the license to buy ONE copy of a software and install it on several computers. The number of computers depends on the terms of the license. NETWORK VERSION – Installing ONE copy on the company’s server and sharing it through a LAN. NETWORK VERSION – Installing ONE copy on the company’s server and sharing it through a LAN. ELECTRONIC SOFTWARE DISTRIBUTION – purchasing the software online. ADVANTAGES & DISADVANTAGES ELECTRONIC SOFTWARE DISTRIBUTION – purchasing the software online. ADVANTAGES & DISADVANTAGES ASP – APPLICATION SERVICE PROVIDER – is a company that sets up and maintains application software on its own systems and makes the software available to its customers over the internet e.g. HR modules, PLM, Supply Chain software. ASP – APPLICATION SERVICE PROVIDER – is a company that sets up and maintains application software on its own systems and makes the software available to its customers over the internet e.g. HR modules, PLM, Supply Chain software.

33 MIS 105 LECTURE 5 INTRODUCTION TO COMPUTER SOFTWARE CHAPTER REFERENCE- CHP. 2

34 TASK ORIENTED SOFTWARE/PRODUCTIVITY SOFTWARE Software that carries out a specific task Software that carries out a specific task Makes work faster and detailed Makes work faster and detailed Sets a market standard Sets a market standard EXAMPLES OF TASK ORIENTED SOFTWARE EXAMPLES OF TASK ORIENTED SOFTWARE

35 CATAGORIES OF TASK ORIENTED SOFTWARE WORD PROCESSING WORD PROCESSING SPREADSHEETS SPREADSHEETS DATABASE MANAGEMENT DATABASE MANAGEMENT GRAPHICS GRAPHICS COMMUNICATIONS COMMUNICATIONS

36 SOFTWARE SUITE Is a collection of task oriented software Is a collection of task oriented software Package that includes some combination of the previous categories. Package that includes some combination of the previous categories. WHY ARE SOFTWARE SUITES USEFUL? WHY ARE SOFTWARE SUITES USEFUL? EXAMPLE OF A SOFTWARE SUITE EXAMPLE OF A SOFTWARE SUITE

37 WORD PROCESSING Is the most widely used personal computer software. Is the most widely used personal computer software. Examples of use of word processing? Examples of use of word processing? What is Desktop Publishing? What is Desktop Publishing? Is there a difference between word processors and desktop publishing in the market? Is there a difference between word processors and desktop publishing in the market? What is the advantage of using word processors/desktop publishing software? What is the advantage of using word processors/desktop publishing software? Disadvantages? Disadvantages?

38 SPREADSHEETS is one of the most widely used business tools is one of the most widely used business tools How are spreadsheets helpful? How are spreadsheets helpful? Are spreadsheets helpful to home users? Are spreadsheets helpful to home users? What are the advantages of using spreadsheets? What are the advantages of using spreadsheets? Disadvantages? Disadvantages?

39 GRAPHICS SOFTWARE Software that is used to produce computer art, or computer generated design Software that is used to produce computer art, or computer generated design Generally used by graphics artists (e.g. computer games, industrial design) Generally used by graphics artists (e.g. computer games, industrial design) IS GRAPHICS SOFTWARE COMMONLY USED IN BUSINESS? IS GRAPHICS SOFTWARE COMMONLY USED IN BUSINESS? Graphs, maps, charts etc help businesses and employees compare data, spot trends and make decisions faster. Graphs, maps, charts etc help businesses and employees compare data, spot trends and make decisions faster. PRESENTATION GRAPHICS – enables businesses to appear more professional PRESENTATION GRAPHICS – enables businesses to appear more professional

40 COMMUNICATIONS SOFTWARE What does communication mean to a personal computer user? What does communication mean to a personal computer user? Communication software allows the user to Communication software allows the user to Access data stored in another location Access data stored in another location Communicate with another computer or information system Communicate with another computer or information system Communicate with everybody via the internet Communicate with everybody via the internet WHAT IS THE MOST COMMON COMMUNICATION SOFTWARE? WHAT IS THE MOST COMMON COMMUNICATION SOFTWARE? Businesses use more than simple browsers as communication software Businesses use more than simple browsers as communication software

41 DATABASE MANAGEMENT SOFTWARE Is software that can store, update, manipulate, retrieve and output data in a variety of ways. Is software that can store, update, manipulate, retrieve and output data in a variety of ways. Can be used to convert data into information Can be used to convert data into information Useful for anyone who must keep track of a large number of related facts – e.g. payroll, student attendance and grades, sales and marketing Useful for anyone who must keep track of a large number of related facts – e.g. payroll, student attendance and grades, sales and marketing IS DATABASE SOFTWARE COMMON FOR HOME USE? IS DATABASE SOFTWARE COMMON FOR HOME USE? WHAT ARE SOME POSSIBLE HOME USES OF DATABASE SOFTWARE? WHAT ARE SOME POSSIBLE HOME USES OF DATABASE SOFTWARE?

42 VERTICAL MARKET SOFTWARE Organizations can hire programmers to write custom software for specific needs. However, many companies use standard packages for standard tasks, e.g. payroll, accounts management, etc. Some software companies specialize in this area of serving similar customers with their specific needs. Organizations can hire programmers to write custom software for specific needs. However, many companies use standard packages for standard tasks, e.g. payroll, accounts management, etc. Some software companies specialize in this area of serving similar customers with their specific needs. VERTICAL MARKET SOFTWARE is software that is written especially for a particular of business process. VERTICAL MARKET SOFTWARE is software that is written especially for a particular of business process. Is generally very user oriented / user friendly Is generally very user oriented / user friendly Vendor generally offers installation, training and support Vendor generally offers installation, training and support IS VERTICAL MARKET SOFTWARE CUSTOM SOFTWARE? IS VERTICAL MARKET SOFTWARE CUSTOM SOFTWARE? WHAT IS THE DIFFERENCE? WHAT IS THE DIFFERENCE?

43 SOHO – SMALL OFFICE/HOME OFFICE Software suites that are designed for small business owners Software suites that are designed for small business owners Generally include Generally include Accounting Accounting Writing and advertising Writing and advertising Customer service Customer service Human resources Human resources Payroll Payroll Presentation Presentation Communication Communication SOHO packages address all these needs, and generally also include a legal and a tax guide. Additionally, SOHO packages also come with pre-formatted legal forms, and other business documents. Their communication modules generally offer links to useful business and government sites on the internet. SOHO packages address all these needs, and generally also include a legal and a tax guide. Additionally, SOHO packages also come with pre-formatted legal forms, and other business documents. Their communication modules generally offer links to useful business and government sites on the internet.

44 COLLABORATIVE SOFTWARE - GROUPWARE Is software that lets a group of people share, manage, and manipulate information together. Is software that lets a group of people share, manage, and manipulate information together. Data used by groupware is generally stored in a central place/DATABASE that can be accessed and changed by anyone working with the data. Data used by groupware is generally stored in a central place/DATABASE that can be accessed and changed by anyone working with the data. CAN EMAIL BE CONSIDERED GROUPWARE? CAN EMAIL BE CONSIDERED GROUPWARE? IS GROUPWARE MORE COMMON FOR HOME USERS OR BUSINESS USERS? IS GROUPWARE MORE COMMON FOR HOME USERS OR BUSINESS USERS?

45 PIM – PERSONAL INFORMATION MANAGER SOFTWARE Is software that provides the functions necessary for a user to track their personal and business activities. Is software that provides the functions necessary for a user to track their personal and business activities. Generally include Generally include Calendar Calendar Address book Address book Task manager Task manager Notepad Notepad Calculator Calculator Most commonly found through handheld computers/ PDAs. Most commonly found through handheld computers/ PDAs.


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