Chapter 1 Background - Siti Nurbaya Ismail

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COMPUTERS AND INFORMATION PROCESSING CSC134 Chapter 1 INTRODUCTION TO COMPUTERS Learning Objectives After completing this chapter you will be able to .
1 Define the term computer and describe the relationshipbetween data and information 2 Describe the five components of a computer 3 Differentiate among types sizes and functions ofcomputers in each category.
4 Describe the uses of computer in society 5 Explain the parts of an information system people procedures software hardware data and the Internet 6 Discuss your future careers and opportunities ininformation technology .
A World of Computers Computers are everywhere at work atschool and at home Today s Technology Because technology.
changes you must keep upwith the changes to remaindigitally literate Computer literacy orDigital literacy involves.
having a current knowledgeand understanding ofcomputers mobile devices the web and relatedtechnologies.
Learning Objective 1 After completing this chapter you will be able to 1 Define the term computer and describe the relationshipbetween data and information 2 Describe the five components of a computer .
3 Differentiate among types sizes and functions ofcomputers in each category4 Describe the uses of computer in society 5 Explain the parts of an information system people procedures software hardware data and the Internet .
6 Discuss your future careers and opportunities ininformation technology What is a Computer A computer is an electronicdevice operating under the information.
control of instructions storedin its own memory that canaccept data process the dataaccording to specified rules Processingproduce results and store the.
results for future use Information processing cycleis the series of input process dataoutput and storage activities What is a Computer .
Computers process data into information Data is a collection of unprocessed items which can include text numbers images audio and video Information conveys meaning and is useful to.
Discovering Computers 2012 Chapter What is a Computer Discovering Computers 2012 Chapter Learning Objective 2 After completing this chapter you will be able to .
1 Define the term computer and describe the relationshipbetween data and information 2 Describe the five components of a computer 3 Differentiate among types sizes and functions ofcomputers in each category.
4 Describe the uses of computer in society 5 Explain the parts of an information system people procedures software hardware data and the Internet 6 Discuss your future careers and opportunities ininformation technology .
The Components of a ComputerHardware Software The Components of a Computer A computer contains many electric electronic andmechanical components known as hardware.
Input Device Allows you to enter data and instructions into a computerOutput Device Hardware component that conveys information to one or more people Case that contains the electronic components of the computer that areSystem Unit used to process data Records writes and or retrieves reads items to and from storage.
Storage Device media Enables a computer to send and receive data instructions andCommunications Device information to and from one or more computers or mobile devices The Components of a Computer Computer Software.
Software also called a program tells thecomputer what tasks to perform and how toperform themSystem Software Operating system.
Utility programApplication Software General purposed Specialized Computer Software.
Installing is the processof setting up softwareto work with thecomputer printer andother hardware .
Advantages and Disadvantagesof Using ComputersAdvantages of Disadvantages ofUsing Computers Using ComputersSpeed Risks.
Violation ofReliability PrivacyConsistencyStorage Labor ForceCommunica Impact on.
tions Environment Advantages of Using Computersdata instructions and information flow along electronicSpeed circuits in a computer at incredibly fast speeds Reliability dependable and reliable because they rarely break or fail .
produce the same results consistently generate error Consistency free resultsstore enormous amounts of data and make this dataStorage available for processing anytime it is needed computers can communicate with other computers often.
Communications wirelessly and allow users to communicate with one Disadvantages of Using Computersnot protected properly individuals have found their privacyViolation of Privacy violated and identities stolen computer users have fallen victim to crimes committed by.
Public Safety dangerous strangers created an entire industry with hundreds of thousands ofImpact on Labor Force new jobs the skills of millions of employees have beenreplaced by computers prolonged or improper computer use can lead to health.
Health Risks injuries or disorders computer addiction and technologycomputer manufacturing processes and computer waste areImpact on Environment depleting natural resources and polluting the environment Advantages and Disadvantagesof Using Computers.
Green computing involvesreducing the electricityconsumed and environmentalwaste generated when usinga computer.
Strategies include Recycling Regulating manufacturing processes Extending the life of computers Immediately donating or properly.
disposing of replaced computers Networks and the Internet A network is acollection of computersand devices connected.
together oftenwirelessly viacommunicationsdevices andtransmission media.
Networks and the Internet The Internet is a worldwide collection of networksthat connects millions of businesses governmentagencies educational institutions and individuals Networks and the Internet.
People use the Internet for a variety of reasons Research and Access InformationCommunicateShop Bank and InvestOnline Trading Entertainment.
Download Videos Share Information Networks and the Internet A social networking Web site encourages membersto share their interests ideas stories photos music and videos with other registered users.
Discovering Computers 2012 Chapter Learning Objective 3 After completing this chapter you will be able to 1 Define the term computer and describe the relationshipbetween data and information .
2 Describe the five components of a computer 3 Differentiate among types sizes and functions ofcomputers in each category4 Describe the uses of computer in society 5 Explain the parts of an information system people .
procedures software hardware data and the Internet 6 Discuss your future careers and opportunities ininformation technology Types of ComputerSupercompute Mainframe.
rs computersMidrange Personalcomputers computers Types of ComputersMidrangeMobile Computers.
Mainframe Mobile DevicesGame ConsolesSupercomputers Supercomputers A supercomputer is the.
fastest most powerful Fastest supercomputersare capable ofprocessing more thanone quadrillion.
instructions in a single Page 25 Discovering Computers 2012 Chapter Figure 1 27 Mainframe Computers A mainframe is a large .
expensive powerfulcomputer that canhandle hundreds orthousands of connectedusers simultaneously.
occupy specially wired air conditioned roomsand capable of greatprocessing speeds anddata storage.
Page 25 Discovering Computers 2012 Chapter Figure 1 26 Midrange Computers A midrange computers orservers are computers with.
processing capabilities lesspowerful than a mainframecomputer yet more powerfulthan a personal computer controls access to the.
hardware software and otherresources on a network provides a centralized storagearea for programs data andinformation.
Personal Computers A personal computer can perform all ofits input processing output and storageactivities by itself There are five types of personal.
computers desktops laptops tablets smartphones and wearables Mobile Computers and Mobile DevicesPersonal computercomputer you.
carry fromfrom placeplace ComputingComputing devicedevice small.
small enoughExamples include smart phones and PDAs e book readers handheld computers portable media players andExamples includeinclude notebooknotebook computers .
computers laptoplaptop computers computers netbooks netbooks ultra thins ultra thins and.
and TabletTablet PCsExamples include smart phones and PDAs e book readers handheld computers portable media players anddigital camerasdigital cameras.
Mobile MobileComputer Device Mobile Computers and Mobile DevicesNotebook computerSmart phones and PDAs.
E book reader Mobile Computers and Mobile DevicesHandheld computerPortable media playerDigital camera.
Discovering Computers 2012 Chapter Game Consoles A game console is amobile computingdevice designed for.
single player ormultiplayer video Embedded Computers An embedded computer is a special purposecomputer that functions as a component in a larger.
Computer DevicesConsumer Home Automation Process ControllersAutomobiles and OfficeElectronics Devices and Robotics Mobile and digital Thermostats Antilock brakes Remote Keyboards.
telephones Sprinkling systems Engine control monitoring Printers Digital televisions Security modules systems Faxes Cameras monitoring Airbag controller Power monitors Copiers Video recorders systems Cruise control Machine DVD players and Appliances controllers.
recorders Lights Medical devices Answering Embedded Computers Types of Computers Learning Objective 4.
After completing this chapter you will be able to 1 Define the term computer and describe the relationshipbetween data and information 2 Describe the five components of a computer 3 Differentiate among types sizes and functions of.
computers in each category4 Describe the uses of computer in society 5 Explain the parts of an information system people procedures software hardware data and the Internet 6 Discuss your future careers and opportunities in.
information technology Examples of Computer UsageHome User Small Office Home Mobile User Personal Connect to otherOffice User.
Look up computers on anetwork or themanagement information Internet Web access Send and receive Transfer information Communications e mail messages Play video games.
Entertainment Make telephone Listen to music Watch movies Examples of Computer UsagePower User Enterprise User Work with multimedia Communicate among.
Use industry specific employeessoftware Process high volumes oftransactions Computer Applications in SocietyGovernment.
Health Care Computer Applications in SocietyPublishingManufacturing Learning Objective 5.
After completing this chapter you will be able to 1 Define the term computer and describe the relationshipbetween data and information 2 Describe the five components of a computer 3 Differentiate among types sizes and functions of.
computers in each category4 Describe the uses of computer in society 5 Explain the parts of an information system people procedures software hardware data and the Internet 6 Discuss your future careers and opportunities in.
information technology Elements of an Information System includes keyboard mouse Software provides step by stepdisplay system unit .
instructions for computertablets smartphones andother devices Data People consists of unprocessed are end users who use.
facts including text computers to makenumbers images and themselves moresounds productive Elements of an Information Learning Objective 6.
After completing this chapter you will be able to 1 Define the term computer and describe the relationshipbetween data and information 2 Describe the five components of a computer 3 Differentiate among types sizes and functions of.
computers in each category4 Describe the uses of computer in society 5 Explain the parts of an information system people procedures software hardware data and the Internet 6 Discuss your future careers and opportunities in.
information technology Shelly, Gary B. and Misty E. Vermaat, Discovering Computers - Fundamentals 2012:Your Interactive Guide to the Digital World, Course Technology, Cengage Learning,2012. O’Leary, Timothy and Linda O’Leary, Computing Essentials 2014 – Complete Edition, McGraw Hill, 2013

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