Download - Unit 2 - Digital Appreciation
-
7/28/2019 Unit 2 - Digital Appreciation
1/41
Unit 2
Introductionto the Worldof Computers
-
7/28/2019 Unit 2 - Digital Appreciation
2/41
1. Explainwhyitisessentialtolearnaboutcomputerstodayanddiscussseveralwayscomputersareintegratedintoourbusinessandpersonallives.
2. Defineacomputeranddescribeitsprimaryoperations.3. Identifythemajorpartsofapersonalcomputer,includinginput,processing,output,storage,andcommunicationshardware.4. Definesoftwareandunderstandhowitisusedtoinstructthe
computerwhattodo.
5.
Listthesixbasictypesofcomputers,givingatleastoneexampleofeachtypeofcomputerandstatingwhatthatcomputermightbeusedfor.
6. Discussthesocietalimpactofcomputers,includingsomebenefitsandrisksrelatedtotheirprominenceinoursociety.
Understanding Computers: Today and Tomorrow, 14th Edition2
Learning Objectives
2
-
7/28/2019 Unit 2 - Digital Appreciation
3/41
ThisUnitcovers:
* Whatcomputersare,howtheywork,andhowtheyareused
* Computerterminology* Thebasictypesofcomputersinusetoday* Societalimpactsofcomputers
Understanding Computers: Today and Tomorrow, 14th Edition 3
Overview
3
-
7/28/2019 Unit 2 - Digital Appreciation
4/41
Before1980Computerswerelarge,expensiveVeryfewpeoplehadaccesstothemComputersweremostlyusedforhigh-volume
processingtasks
Duringthe1980sInexpensivepersonalcomputersbecamepopularComputeruseincreaseddramatically
Understanding Computers: Today and Tomorrow, 14th Edition 4
Computers in Your Life
-
7/28/2019 Unit 2 - Digital Appreciation
5/41
Today Morethan80%ofUShouseholdsincludeacomputer,andmost
usecomputersatwork
Electronicdevicesareconvergingintosingleunitswithmultiplecapabilities(Acomputerisnolongeranisolatedproductivitytool)
Youcanchecke-mailonyourlivingroomtelevisionYoucanviewinternetcontentonmobilephoneorothermobiledevice
Computerliteracyisimportant&necessaryforeveryone Knowingaboutandunderstandingcomputersandtheiruses
isanessentialskillforeveryone
Understanding Computers: Today and Tomorrow, 14th Edition 5
Computers in Your Life
Checkpoint
Ahead!!!
-
7/28/2019 Unit 2 - Digital Appreciation
6/41
Computersareusedforavarietyoftasks: Lookingupinformationandnews Exchanginge-mails Shoppingandpayingbills WatchingTVandvideos Downloadingmusicandmovies
Organizingdigitalphotographs Playinggames Makingvacationplans Connectingwithpeople
Understanding Computers: Today and Tomorrow, 14th Edition 6
Computers in the Home
-
7/28/2019 Unit 2 - Digital Appreciation
7/41
oWirelessnetworking- Computerscanbeusedinnearlyanylocation
oSmartappliances- Traditionalapplianceswithbuilt-incomputeror
communicationtechnology
o Smarthomes- Householdtasksaremonitoredandcontrolledbyamain
computerinthehouse
Understanding Computers: Today and Tomorrow, 14th Edition 7
Computers in the Home
-
7/28/2019 Unit 2 - Digital Appreciation
8/41
Understanding Computers: Today and Tomorrow, 14th Edition 8
Computers in the Home
-
7/28/2019 Unit 2 - Digital Appreciation
9/41
Acomputerisnolongeranisolatedproductivitytool.Whatdoesthisstatementmeantoyouasateenagergrowingupinthecomputergeneration?
Yahoomail,gmailandIOSmailare3ofthemostpopularemailclientstoday.
a) List3advantagesand2disadvantagesofemailservice Wementionedthatconnectingwithpeopleisathattaskthat
computersperforminthehome
a)
Otherthanviaemail,state2otherwaysthatthisisdone. Whataresmartappliances?
a) List2popularsmartappliancesandexplainwhatmakestheseappliancesmart
Understanding Computers: Today and Tomorrow, 14th Edition 9
CHECKPOINT 2.1 Due: 4/17
-
7/28/2019 Unit 2 - Digital Appreciation
10/41
Todaysyouthcanbecalledthecomputinggeneration Moststudentstodayhaveaccesstocomputersatschool
Someschoolsintegratee-booksintotheircurriculum Collegesanduniversitiesareevenmoreintegrated
Wirelesshotspotsallowusageofpersonallaptopstoconnecttothecollegenetwork
Somecollegesrequireacomputerforenrollment
Distancelearning/onlinelearning Studentsparticipatefromlocationsotherthanthetraditional
classroomsettingusingcomputersandInternetaccess
Understanding Computers: Today and Tomorrow, 14th Edition 10
Computers in EducationCheckpoint
Ahead!!!
-
7/28/2019 Unit 2 - Digital Appreciation
11/41
Understanding Computers: Today and Tomorrow, 14th Edition 11
Computers in Education
-
7/28/2019 Unit 2 - Digital Appreciation
12/41
Computershavebecomeauniversalon-the-jobtoolfordecision-making,productivity,andcommunication
Usedbyalltypesandalllevelsofemployees Usedforaccesscontrolandothersecuritymeasures Usebyserviceprofessionalsisgrowing Usedextensivelybythemilitary Employeesinalllinesofworkneedtocontinuallyrefreshtheir
computerskills
Understanding Computers: Today and Tomorrow, 14th Edition 12
Computers on the Job
-
7/28/2019 Unit 2 - Digital Appreciation
13/41
Understanding Computers: Today and Tomorrow, 14th Edition 13
Computers on the Job
-
7/28/2019 Unit 2 - Digital Appreciation
14/41
Computersareencounteredinnearlyeveryaspectofdailylife
* Consumerkiosks* ATMtransactions* POSsystemsatretailstores* Self-checkoutsystems* Consumerauthenticationsystems* Portablecomputersormobiledevices* GPSsystems
Understanding Computers: Today and Tomorrow, 14th Edition 14
Computers on the Go
-
7/28/2019 Unit 2 - Digital Appreciation
15/41
Whatisane-book?a) State2ofthemostpopulare-bookreadersb) State1advantageofane-bookreader
Whatisawirelesshotspot?a) Otherthanschools,list2otherplacesthatprovidewirelesshotspots
Whenwespeakofcomputersprovidingaccesscontrolasaformofsecurity,whatdowemean?a) State2waysthatemployerscanutilizeaccesscontrol
Whatisakiosk?a) Identifythepopularkioskusedtorentmoviesandvideogamesb) WhatwouldIuseakioskforinanairport?
Whatdothefollowingacronymsmean?a) ATMb) POS
Identify2placeswhereIcouldfindaselfcheckoutsystema) State1advantageand1disadvantageofselfcheckoutsystems
Understanding Computers: Today and Tomorrow, 14th Edition 15
CHECKPOINT 2.2 Due: 4/19
-
7/28/2019 Unit 2 - Digital Appreciation
16/41
Computer Aprogrammable,electronicdevicethatacceptsdata,performs
operationsonthatdata,andstoresthedataorresultsasneeded
Computersfollowinstructions,calledprograms,whichdeterminethetasksthecomputerwillperform
Basicoperationsorfunctionsofacomputer Input:Enteringdata/instructionsintothecomputer
Processing:Performingoperationsonthedata
Output:Presentingtheresults/information Storage:Savingdata,programs,orinformationforfutureuse Communications:Sendingorreceivingdata/information
Understanding Computers: Today and Tomorrow, 14th Edition16
What Is a Computer and
What Does It Do?
-
7/28/2019 Unit 2 - Digital Appreciation
17/41
Understanding Computers: Today and Tomorrow, 14th Edition17
What Is a Computer and
What Does It Do?
-
7/28/2019 Unit 2 - Digital Appreciation
18/41
oData* Raw,unorganizedfacts* Canbeintheformoftext,graphics,audio,orvideo
o Information* Datathathasbeenprocessedintoameaningfulform
Understanding Computers: Today and Tomorrow, 14th Edition18
Data vs. Information
-
7/28/2019 Unit 2 - Digital Appreciation
19/41
oHardware:Thephysical/tangiblepartsofacomputer Internalhardware
Locatedinsidethemainbox(systemunit)ofthecomputer Externalhardware
Locatedoutsidethesystemunit Connecttothecomputerviaawiredorwirelessconnection
Hardwaredevicesareassociatedwithallfivecomputeroperations/functions
Understanding Computers: Today and Tomorrow, 14th Edition
19
Hardware
-
7/28/2019 Unit 2 - Digital Appreciation
20/41
o Inputdevices Hardwareusedtoenterdataintothecomputer Examples:Keyboards,mice,scanners,cameras,microphones,
joysticks,touchpads,touchscreens,fingerprintreaders,webcamerasetc.
oProcessingdevices Performcalculationsandcontrolcomputersoperation Centralprocessingunit(CPU)andmemory
oOutputdevices Presentresults/informationtotheuser Examples:Monitors,printers,speakers,projectors,etc.
Understanding Computers: Today and Tomorrow, 14th Edition20
Hardware
-
7/28/2019 Unit 2 - Digital Appreciation
21/41
oStoragedevices Usedtostoredataonoraccessdatafromstoragemedia Examples:Harddrives,CD/DVDdiscsanddrives,USBflashdrives,
cardreadersetc.
oCommunicationsdevices Allowuserstocommunicatewithothersandtoelectronically
accessremoteinformation
Examples:Modems,networkadapters,etc.Understanding Computers: Today and Tomorrow, 14th Edition
21
Hardware
-
7/28/2019 Unit 2 - Digital Appreciation
22/41
Understanding Computers: Today and Tomorrow, 14th Edition22
Hardware
-
7/28/2019 Unit 2 - Digital Appreciation
23/41
oSoftware Theprogramsorinstructionsusedtotellthecomputerhardware
whattodo
Systemsoftware(OS&Utilities)- TheOperatingSystemstartsupthecomputerandcontrolsits
operation
- WithouttheOS,thecomputercannotfunction-
ItBootsthecomputerandlaunchesprogramsattheusersdirection
- MostuseaGUItointeractwiththeuserviawindows,icons,menus,buttons,etc.
- Examples:Windows,MacOS,Linux,etc.Understanding Computers: Today and Tomorrow, 14th Edition
23
Software
-
7/28/2019 Unit 2 - Digital Appreciation
24/41
oApplicationsoftware PerformsspecifictasksorapplicationsfortheUser
Creatingletters,budgets,etc. Managinginventoryandcustomerdatabases Editingphotographs Schedulingappointments ViewingWebpages Sendingandreceivinge-mail Recording/playingCDsandDVDs Designinghomes Playinggames
Understanding Computers: Today and Tomorrow, 14th Edition24
Application Software
-
7/28/2019 Unit 2 - Digital Appreciation
25/41
Understanding Computers: Today and Tomorrow, 14th Edition25
Application Software
-
7/28/2019 Unit 2 - Digital Appreciation
26/41
Understanding Computers: Today and Tomorrow, 14th Edition26
Application Software
-
7/28/2019 Unit 2 - Digital Appreciation
27/41
oSixbasiccategoriesofcomputers:- Embeddedcomputers- Mobiledevices- Personalcomputers- Midrangeservers- Mainframecomputers- Supercomputers
Understanding Computers: Today and Tomorrow, 14th Edition27
Computers To Fit Every NeedCheckpoint
Ahead!!!
-
7/28/2019 Unit 2 - Digital Appreciation
28/41
oEmbeddedcomputer- Embeddedintoaproductanddesignedtoperformspecifictasks
orfunctionsforthatproduct
- Cannotbeusedasgeneral-purposecomputers- Oftenembeddedinto:
Householdappliances Thermostats Sewingmachines A/Vequipment Answeringmachines Cars
Understanding Computers: Today and Tomorrow, 14th Edition28
Embedded Computers
-
7/28/2019 Unit 2 - Digital Appreciation
29/41
oMobiledevice- Averysmalldevicewithsometypeofbuilt-incomputingor
Internetcapability- Typicallyhavesmallscreensandkeyboards- Examples:
Smartphones
Handheldgamingdevices Portabledigitalmediaplayers Mobiletablets E-readers
Understanding Computers: Today and Tomorrow, 14th Edition29
Mobile Devices
-
7/28/2019 Unit 2 - Digital Appreciation
30/41
o PersonalComputer Asmallcomputerdesignedtobeusedbyonepersonatatime Alsocalledamicrocomputer Availableindifferentsizesandshapes
Desktopcomputers Fitonornexttoadesk Canusetowercase,desktopcase,orall-in-one CanbePC-
compatibleorMacintosh
Notdesignedtobeportable
Understanding Computers: Today and Tomorrow, 14th Edition30
Personal Computers (PCs)
-
7/28/2019 Unit 2 - Digital Appreciation
31/41
oPortableComputers Designedtobecarriedaroundeasily Fullyfunctionalcomputers Examples
Notebook(laptop)computersTypicallyuseaclamshelldesign TabletComputersUsuallyuseadigitalpen/stylusortouchscreenCanbeslateorconvertibletablets
Understanding Computers: Today and Tomorrow, 14th Edition
31
Portable Computers
-
7/28/2019 Unit 2 - Digital Appreciation
32/41
NetbooksSmaller,lighter,andlessexpensivethanconventionalnotebooksLongerbatterylifeGoodforstudentsandbusinesstravelers
Understanding Computers: Today and Tomorrow, 14th Edition
32
Portable Computers
-
7/28/2019 Unit 2 - Digital Appreciation
33/41
oMidrangeserver Amedium-sizedcomputerusedtohost/storeprogramsand
dataforasmallnetwork
Someusersconnectviaanetworkwithacomputer,thinclient,ordumbterminal
Virtualization Creatingvirtualratherthan
actualenvironments(oftenusedtoshareaserverforincreasedefficiency)
Understanding Computers: Today and Tomorrow, 14th Edition
33
Midrange Servers
-
7/28/2019 Unit 2 - Digital Appreciation
34/41
oMainframecomputer- Powerfulcomputerusedbymanylargeorganizationstomanage
largeamountsofcentralizeddata
- Standardchoiceforhospitals,universities,largebusinesses,banks,governmentoffices
- Locatedinclimate-controlleddatacentersandconnectedtotherestofthecompanycomputersviaanetwork
- Larger,moreexpensive,andmorepowerfulthanmidrangeservers- Usuallyoperate24hoursaday- Alsocalledhigh-endservers
Understanding Computers: Today and Tomorrow, 14th Edition
34
Mainframe Computers
-
7/28/2019 Unit 2 - Digital Appreciation
35/41
Understanding Computers: Today and Tomorrow, 14th Edition
35
Mainframe Computers
-
7/28/2019 Unit 2 - Digital Appreciation
36/41
oSupercomputer- Fastest,mostexpensive,mostpowerfultypeofcomputer- Generallyrunoneprogramatatime,asfastaspossible- Commonlybuiltbyconnectinghundredsofsmallercomputers,
supercomputingcluster
- Usedforspaceexploration,missileguidance,satellites,weatherforecast,oilexploration,scientificresearch,complexWebsites,decisionsupportsystems,3Dapplications,etc.
Understanding Computers: Today and Tomorrow, 14th Edition
36
Supercomputers
-
7/28/2019 Unit 2 - Digital Appreciation
37/41
Understanding Computers: Today and Tomorrow, 14th Edition
37
Supercomputers
-
7/28/2019 Unit 2 - Digital Appreciation
38/41
Stateonedevicethatisnotstandardonanetbookthatcomestandardonmostnotebooks/laptops
State2differentplacesthatwouldutilizeamidrangeserver Stateonesimilaritybetweenamidrangeserverandamainframe Stateoneadvantageofamainframeoveramidrangeserver Identifythecategoryofcomputerbeingbelow:
a) UsedSendandreceiveemailsonthegob) UsedbyRushHospitalc) UsedinaHighschoolcomputerLabd) Usedforweatherforecastinge) Usedinasmallbusinessf) Foundinyourmicrowaveathome
Understanding Computers: Today and Tomorrow, 14th Edition 38
CHECKPOINT 2.3 Due: 4/23
-
7/28/2019 Unit 2 - Digital Appreciation
39/41
o Thevastimprovementsintechnologyoverthepastdecadehavehadadistinctimpactondailylife,bothathomeandatwork
o Therearemanybenefitsofacomputer-orientedsociety Abilitytodesignproductsbeforeconstructionleadstosaferproducts Earliermedicaldiagnosesandmoreeffectivetreatment Devicesthatallowphysicallyand/orvisuallychallengedindividualsto
performjobtasks
Documentse-mailedorfaxedinmoments(seconds/minutes) Downloadinformation,music,programs,movies,andmoreondemand
Understanding Computers: Today and Tomorrow, 14th Edition
39
Computers and SocietyCheckpoint
Ahead!!!
-
7/28/2019 Unit 2 - Digital Appreciation
40/41
oTherearealsomanyrisksinacomputer-orientedsociety- Stressandhealthconcerns- Spam- Computervirusesandmalware- Identitytheftandphishing- Privacyissues
- Howdataiscollected- Howsecureisthecollecteddata
Understanding Computers: Today and Tomorrow, 14th Edition
40
Computers and Society
D 4/25
-
7/28/2019 Unit 2 - Digital Appreciation
41/41
U d t di C t T d d T 14th Editi 41
CHECKPOINT 2.4 Identifyonemajorhealthconcernthatemergedfroma
computerorientedsociety
Explainhowphishingworks WhatisthepurposeofthePrivacyActof1974
a) StateoneconditionoftheAct
Due: 4/25