conceptsAppropriate technologyCritique associated with technologyDiffusion regarding innovationsDisr...

1. utf8_encode(Information technology - Wikipedia, the free
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Commercial perspective[edit]
Book
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Portal
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Ethical perspective[edit]Main article: information ethics
Bibliography
Early electronic computers such as Colossus made use of punched tape, a long strip involving paper
in that data had been represented with a series of holes, a technology now obsolete.[15] Electronic
data storage, that is found in modern computers, dates in the 2nd Globe War, whenever a type of
delay line memory ended up being developed to always be able to eliminate the clutter via radar
signals, the initial practical application involving which in turn was your mercury delay line.[16] The
extremely first random-access digital storage device ended up being your Williams tube, depending
on any standard cathode ray tube,[17] nevertheless the info stored in it and also delay line memory
was volatile for the purpose why that it had to become constantly refreshed, and therefore had been
lost when power had been removed. The Particular earliest kind of non-volatile computer storage
has been your magnetic drum, invented in 1932[18] and used in the Ferranti Mark 1, the world's
first commercially obtainable general-purpose electronic computer.[19]
Academic perspective[edit]
Contents1 History of computer technology2 data storage3 Databases4 data retrieval5 Information
transmission6 Information manipulation7 Academic perspective8 Commercial perspective9 Ethical
perspective10 Observe also11 References12 Further reading13 External links
XML has been increasingly employed as a method of data interchange since the actual early
2000s,[34] especially with regard to machine-oriented interactions like these involved in weboriented protocols such as SOAP,[29] describing "data-in-transit as opposed to ... data-at-rest".[34] 1
of the challenges regarding such use is actually converting information coming from relational
databases into XML Document Object Model (DOM) structures.[35]
Electronic computers, making use of both relays or perhaps valves, began to appear inside the early
1940s. Your electromechanical Zuse Z3, completed throughout 1941, ended up being your world's
1st programmable computer, by modern standards one of the initial machines that will could be

2. considered a whole computing machine. Colossus, developed throughout the World War 2 to be able
to decrypt German messages had been the first electronic digital computer. Even though it
absolutely was programmable, it ended up being not general-purpose, being designed to do just a
single task. Furthermore, it lacked the ability to retailer its program inside memory; programming
ended up being carried out using plugs and also switches to alter the actual internal wiring.[12] The
very first recognisably modern electronic digital stored-program pc was your Manchester SmallScale Experimental machine (SSEM), which usually ran its 1st program on 21 June 1948.[13]
Devices happen for you to be utilized to aid computation pertaining to 1000s of years, probably
initially inside the form of your tally stick.[8] The Actual Antikythera mechanism, dating coming from
about first regarding the first century BC, is usually considered to become the actual earliest
identified mechanical analog computer; additionally it is the particular earliest known geared
mechanism.[9] Comparable geared devices did not emerge within Europe until the 16th century,[10]
as well as it had not been until 1645 that the initial mechanical calculator capable of executing your
four simple arithmetical operations was developed.[11]
See also[edit]Information and also communications technologies (ICT)Information systems
(IS)ComputingData processing
The relational database model introduced the programming-language independent Structured Query
Language (SQL), according to relational algebra.[27]
Humans are already storing, retrieving, manipulating and also communicating details since the
particular Sumerians in Mesopotamia developed writing throughout concerning 3000 BC,[6] but the
term info technologies within its modern sense 1st appeared inside a 1958 article revealed in the
Harvard business Review; authors Harold J. Leavitt along with Thomas L. Whisler commented that
"the new technology does not but have a single established name. We shall refer in order to it as
details technologies (IT)."[7]
http://en.wikipedia.org/wiki/Information_technology
In the company context, the particular information Technologies Association regarding America
features defined info technologies as "the study, design, development, application, implementation,
support or management of computer-based info systems".[5] the responsibilities associated with
these working inside the field include network administration, computer software development as
well as installation, as well as the planning and also management of an organization's technology life
cycle, simply by which hardware along with software applications are maintained, upgraded along
with replaced.
References[edit]
Alavudeen, A.; Venkateshwaran, N. (2010), Pc Integrated Manufacturing, PHI Learning, ISBN 97881-203-3345-1 Bynum, Terrell Ward (2008), "Norbert Wiener as well as the Rise regarding Info
Ethics", within van den Hoven, Jeroen; Weckert, John, Details Technologies along with Moral
Philosophy, Cambridge University Or College Press, ISBN 978-0-521-85549-5 Chaudhuri, P. Pal
(2004), computer Organization and also Design, PHI Learning, ISBN 978-81-203-1254-8 Childress,
David Hatcher (2000), technology with the Gods: Your Extraordinary Sciences with the Ancients,
Adventures Limitless Press, ISBN 978-0-932813-73-2 Dych?(C), Jill (2000), Turning data Directly
Into information Along With Information Warehousing, Addison Wesley, ISBN 978-0-201-65780-7
Han, Jiawei; Kamber, Micheline; Pei, Jian (2011), data Minining: Concepts along with Techniques
(3rd ed.), Morgan Kaufman, ISBN 978-0-12-381479-1 Kedar, Seema (2009), Database Management
Systems, Technical Publications, ISBN 978-81-8431-584-4 Khurshudov, Andrei (2001), Your essential
Guidebook in order to Personal Computer Information Storage: Through Floppy in order to DVD,
Prentice Hall, ISBN 978-0-130-92739-2 Lavington, Simon (1980), Early British Computers, Digital
Press, ISBN 978-0-7190-0810-8 Lavington, Simon (1998), A New History involving Manchester
Computers (2nd ed.), The Actual British Pc Society, ISBN 978-1-902505-01-5 Lewis, Bryn (2003),
"Extraction involving XML through Relational Databases", inside Chaudhri, Akmal B.; Djeraba,

3. Chabane; Unland, Rainer; Lindner, Wolfgang, XML-Based data Management as well as Multimedia
Engineering " EDBT 2002 Workshops, Springer, ISBN 978-3540001300 Pardede, Eric (2009), Open
Up as well as Novel Concerns in XML Database Applications, Details Science Reference, ISBN 9781-60566-308-1 Proctor, K. Scott (2011), Optimizing and Assessing Details Technology: Improving
Enterprise Project Execution, John Wiley & Sons, ISBN 978-1-118-10263-3 Ralston, Anthony;
Hemmendinger, David; Reilly, Edwin D., eds. (2000), Encyclopedia regarding Pc Science (4th ed.),
nature Publishing Group, ISBN 978-1-56159-248-7 Reynolds, George (2009), Ethics within
information Technology, Cengage Learning, ISBN 978-0-538-74622-9 van der Aalst, Wil M. P.
(2011), process Mining: Discovery, Conformance and Enhancement regarding Company Processes,
Springer, ISBN 978-3-642-19344-6 Wang, Shan X.; Taratorin, Aleksandr Markovich (1999), Magnetic
Details Storage Technology, Academic Press, ISBN 978-0-12-734570-3 Ward, Patricia; Dafoulas,
George S. (2006), Database Management Systems, Cengage Understanding EMEA, ISBN 978--84480-452-8 Weik, Martin (2000), Personal Computer Science and also Communications Dictionary
2, Springer, ISBN 978-0-7923-8425-0 Wright, Michael T. (2012), "The Front Dial with the
Antikythera Mechanism", throughout Koetsier, Teun; Ceccarelli, Marco, Explorations within the
History of Machines as well as Mechanisms: Proceedings associated with HMM2012, Springer, pp.
279"292, ISBN 978-94-007-4131-7
^ Daintith, John, ed. (2009), "IT", The Dictionary of Physics, Oxford School Press, retrieved one
August 2012 (subscription required)^ "Free on-line dictionary regarding computing (FOLDOC)".
Retrieved 9 February 2013. ^ Chandler, Daniel; Munday, Rod, "Information technology", a
Dictionary regarding Media along with Communication (first ed.), Oxford University Or College
Press, retrieved one August 2012 (subscription required)^ Ralston, Hemmendinger & Reilly (2000),
p. 869^ Proctor (2011), preface^ the b Butler, Jeremy G., "A History regarding information
Technologies and also Systems", School involving Arizona, retrieved two August 2012 ^ Leavitt,
Harold J.; Whisler, Thomas L. (1958), "Management inside the 1980s", Harvard Company Review 11
^ Schmandt-Besserat, Denise (1981), "Decipherment in the earliest tablets", Science 211 (4479):
283"85, doi:10.1126/science.211.4479.283, PMID 17748027 (subscription required)^ Wright (2012),
p. 279^ Childress (2000), p. 94^ Chaudhuri (2004), p. 3^ Lavington (1980)^ Enticknap, Nicholas
(Summer 1998), "Computing's Golden Jubilee", Resurrection (The Personal Computer Conservation
Society) (20), ISSN 0958-7403, retrieved 19 April 2008 ^ Cooke-Yarborough, E. H. (June 1998),
"Some early transistor apps within the UK", Engineering as well as Science Training Journal (IEE) 7
(3): 100"106, doi:10.1049/esej:19980301, ISSN 0963-7346, retrieved 7 June 2009 (subscription
required)^ Alavudeen & Venkateshwaran (2010), p. 178^ Lavington (1998), p. 1^ "Early computers
from Manchester University", Resurrection (The Personal Computer Conservation Society) one (4),
Summer 1992, ISSN 0958-7403, retrieved 19 April 2008 ^ Universit??t Klagenfurt (ed.), "Magnetic
drum", Virtual Exhibitions throughout Informatics, retrieved 21August 2011 ^ the Manchester Mark
1, University Or College involving Manchester, retrieved 24 January 2009 Examine date values in:
|accessdate= (help)^ Khurshudov (2001), p. 6^ Wang & Taratorin (1999), pp. 4"5.^ Wu, Suzanne,
"How Significantly Info is There inside the World?", USC Information (University involving Southern
California), retrieved 10 September 2013 ^ a b c Hilbert, Martin; L??pez, Priscila (1 April 2011),
"The World's Technological Capacity to Store, Communicate, along with Compute Information",
Science 332 (6025): 60"65, retrieved ten September 2013 ^ "video animation on The Particular
World's Technological Capacity to be able to Store, Communicate, as well as Compute Details
through 1986 to 2010^ a new b c Ward & Dafoulas (2006), p. 2^ Olofson, Carl W. (October 2009),
"A Platform with regard to Enterprise Information Services", IDC, retrieved 7 August 2012 ^ any b
Ward & Dafoulas (2006), p. 3^ Pardede (2009), p. 2^ any b Pardede (2009), p. 4^ Kedar (2009), pp.
1"9^ van der Aalst (2011), p. 2^ Dych?(C) (2000), pp. 4"6^ Weik (2000), p. 361^ any b Pardede
(2009), p. xiii.^ Lewis (2003), pp. 228"31.^ Han, Kamber & Pei (2011), p. 5^ Han, Kamber & Pei
(2011), p. 8^ Han, Kamber & Pei (2011), p. xxiii^ The Particular Joint Job Force with regard to
Computing Curricula 2005.Computing Curricula 2005: the Overview report (pdf)^ "Forecast Alert:
IT Spending, Worldwide, 4Q12 Update", Gartner, retrieved two January 2013 ^ Bynum (2008), p.

4. 9.^ Reynolds (2009), pp. 20"21.
The field of data ethics has been established through mathematician Norbert Wiener inside the
1940s.[41] Several in the ethical issues related using the use of knowledge technologies include:[42]
The extensible markup language (XML) has become a well known format for data representation
within latest years. Although XML data can be kept in regular file systems, it truly is typically
located in relational databases to consider good thing about their own "robust implementation
verified through many years of both theoretical as well as practical effort".[28] While an evolution
with the Normal Generalized Markup Language (SGML), XML's text-based construction supplies the
benefit of being each machine and human-readable.[29]
Information technologies - Wikipedia, the particular totally free encyclopedia
Data retrieval[edit]
Worldwide IT spending forecast[40] (billions regarding U.S. dollars)Category2012 spending2013
spendingDevices627666Data center systems141147Enterprise software278296IT
services881927Telecom services1,6611,701Total3,5883,737
The growth along with development of transistors within the late 1940s with Bell Laboratories
permitted a fresh generation regarding computers being made with greatly reduced power
consumption. The initial commercially available stored-program computer, your Ferranti Mark I,
contained 4050 valves and also were built together with a power consumption of 25 kilowatts.
Simply By comparison the really first transistorised computer, developed in the School involving
Manchester and also operational by November 1953, consumed only 150 watts within its final
version.[14]
Notes
outsourcingAccentureAtosBooz Allen HamiltonBTCACICapgeminiCGI
GroupCognizantCSCDeloitteDell ServicesDigital ChinaFujitsuHCL TechnologiesHitachi
ConsultingHPIBMIndraInfosysNECNTT DataOrange Company ServicesTCSTSystemsUnisysWiproImagingCanonHPKodakKonica
MinoltaKyoceraLexmarkNikonOlympusRicohSamsungSeiko
EpsonSharpSonyToshibaXeroxInformation storageDellEMCFujitsuHitachi Information
SystemsHPIBMNetAppOracleSamsungSeagateWestern
DigitalInternet360buyAlibabaAmazon.comBaidueBayFacebookGoogleGrouponIACMicrosoftNHNNet
EaseRakutenSalesforce.comTencentYahoo!MainframesFujitsuIBMMobile
devicesAcerAppleAsusBlackBerryHTCHuaweiLGMotorola MobilityNokiaSamsungSonyTCL
(Alcatel)ZTENetworking equipmentAlcatelLucentAvayaCiscoEricssonFujitsuHPHuaweiJuniperMitsubishi ElectricMotorola SolutionsNECNokia
Options along with NetworksSamsungZTEOEMsCelesticaCompal
ElectronicsFlextronicsFoxconnJabilPegatronQuantaSanmina-SCITPV TechnologyWistronPersonal
computers
Breaches regarding copyright through these downloading files stored with out your permission of
the copyright holdersEmployers monitoring their employees' emails along along with other Internet
usageUnsolicited emailsHackers accessing online databasesWeb web sites installing cookies or
spyware to observe a new user's on-line activities
"IT" redirects here. Regarding some other uses, observe This (disambiguation).Information
scienceGeneral aspectsInformation access ??Information architectureInformation
managementInformation retrievalInformation seeking ??Information societyKnowledge organization

5. ??OntologyPhilosophy regarding informationScience, technology as well as societyRelated fields and
also sub-fieldsBibliometrics ??CategorizationCensorship ??ClassificationComputer data storage
??Cultural studiesData acting ??InformaticsInformation technologyIntellectual freedomIntellectual
property ??MemoryLibrary and knowledge sciencePreservation ??Privacy Details science portalvte
Based around the storage and processing technologies employed, you'll have the particular ability to
distinguish 4 distinct phases regarding IT development: pre-mechanical (3000 BC " 1450 AD),
mechanical (1450"1840), electromechanical (1840"1940) and electronic (1940"present).[6] This
specific article focuses around the most latest time period (electronic), which usually began
throughout about 1940.
^ In the later on more broad application in the term IT, Keary comments: "In its original application
'information technology' had been appropriate to describe your convergence of technologies using
application in the broad field of data storage, retrieval, processing, and also dissemination. This kind
of helpful conceptual term offers since been converted to what purports to be concrete use, however
with out your reinforcement regarding definition ... your term IT lacks substance when applied
towards the title of any kind of function, discipline, or even position."[4]^ "Format" refers for the
physical characteristics in the stored information such as its encoding scheme; "structure" describes
the particular organisation of that data.
IBM introduced the first hard disk drive within 1956, as being a element associated with their 305
RAMAC personal computer system.[20] Many digital data today will be nonetheless stored
magnetically about difficult disks, or even optically upon media for example CD-ROMs.[21] Until
2002 nearly all info was stored upon analog devices, but in which year digital storage capacity
exceeded analog for that very first time. Because regarding 2007 nearly 94% in the information
stored worldwide has been held digitally:[22] 52% about tough disks, 28% about optical devices, and
11% in digital magnetic tape. That may be estimated that the worldwide capacity in order to retailer
information on electronic devices grew coming from under 3 exabytes in 1986 to always be able to
295 exabytes within 2007,[23] doubling approximately each three years.[24]
All database management systems consist of the number of components that will with each other
permit the information these people retailer being accessed simultaneously by many customers
while maintaining its integrity. A New characteristic of most databases is usually that the actual
construction with the data they contain will be defined along with stored separately from your
information itself, in a database schema.[25]
and serversAcerAppleAsusDellFujitsuHPLenovoLGNECSamsungSonyToshibaServers
onlyCiscoIBMOraclePoint of saleNCRToshibaSemiconductorsAdvanced Micro
DevicesBroadcomFreescale SemiconductorFujitsuLGInfineon TechnologiesIntelMarvell Technologies
GroupMediaTekMicron TechnologyNvidiaNXPPanasonicQualcommRenesas ElectronicsSamsungSK
HynixSonySTMicroelectronicsTexas
InstrumentsToshibaFoundriesGlobalFoundriesTSMCUMCSoftwareAdobeAppleCAGoogleHPIBMIntui
tMicrosoftOracleSAPSymantecVMwareTelecommunications
servicesAm?(C)rica M??vilAT&TBell CanadaBTBharti AirtelCenturyLinkChina MobileChina
TelecomChina UnicomComcastDeutsche TelekomHutchisonKDDIKPNKTMTNMTSNTTNTT
DoCoMoOiOrangePTRogersSaudi TelecomSingTelSK TelecomSoftBank MobileSprint
CorporationSwisscomTelenorTelecom
ItaliaTelef??nicaTeliaSoneraVerizonVimpelComVivendiVodafoneMethodology: FY2012/13 applicable
revenues involving over: group 1-3, 6-12 - US$3 billion; team 4 - US$2 billion; group 5 - US$1 billion;
group 13 - US$10 billionvteTechnologyOutline of technologyOutline of applied
scienceFieldsAgricultureAgricultural engineeringAquacultureFisheries scienceFood chemistryFood
engineeringFood microbiologyFood technologyGURTICT within

6. agricultureNutritionBiomedicalBioinformaticsBiological engineeringBiomechatronicsBiomedical
engineeringBiotechnologyCheminformaticsGenetic engineeringHealthcare scienceMedical
researchMedical technologyNanomedicineNeuroscienceNeurotechnologyPharmacologyReproductive
technologyTissue engineeringBuildings and
Database management systems emerged inside the 1960s to address the issue regarding storing and
retrieving large numbers of information precisely as well as quickly. 1 with the earliest such
methods has been IBM's Info Management System (IMS),[25] that is even now widely deployed a lot
more than 40 years later.[26] IMS retailers information hierarchically,[25] yet in the 1970s Ted
Codd proposed an alternative solution relational storage model depending on set theory and also
predicate logic and in addition the familiar concepts of tables, rows along with columns. The very
first commercially obtainable relational database management system (RDBMS) had been offered by
Oracle throughout 1980.[27]
Massive numbers of information tend to be stored worldwide each and also every day, nevertheless
unless it could be analysed and also offered efficiently it essentially resides as for you to what have
been referred to as information tombs: "data archives which are seldom visited".[36] to address that
will issue, the area of data mining " "the technique of discovering fascinating patterns and
knowledge coming from big numbers of data"[37] " emerged inside the late 1980s.[38]
External links[edit]The Global Details technology Record 2008"2009vteMajor details technology
companiesLargest IT companiesLargest World wide web companiesLargest computer software
companiesSemiconductor sales leaders by simply yearConsulting and
The terms "data" as well as "information" aren't synonymous. Something stored can be data,
however it simply gets in order to be info in the event it will be organised along with offered
meaningfully.[30] Many of the world's digital details are unstructured, as well as stored in a
assortment of numerous physical formats[31][b] even inside any single organization. Information
warehouses began being developed in the 1980s to always be able to integrate these disparate
stores. They Will typically contain data extracted from various sources, such as external resources
such because the Internet, organised throughout such a way as to facilitate decision assistance
systems (DSS).[32]
Data transmission provides three aspects: transmission, propagation, as well as reception.[33] This
may be broadly categorized as broadcasting, by which information is transmitted unidirectionally
downstream, or even telecommunications, along with bidirectional upstream and also downstream
channels.[23]
Information technology (IT) may be the application involving computers as well as
telecommunications equipment for you to store, retrieve, transmit and also manipulate data,[1]
frequently within the context of the business or virtually any other enterprise.[2] The Actual term
will be widely used as a synonym pertaining to computers and computer networks, but additionally,
it encompasses various other info distribution technologies for example television as well as
telephones. several industries are usually associated with information technology, for example pc
hardware, software, electronics, semiconductors, internet, telecom equipment, e-commerce and also
personal computer services.[3][a]
Data manipulation[edit]
Databases[edit]Main article: Database management system
History associated with computer technology[edit]Main article: History associated with computing
hardware
Data transmission[edit]

7. Data storage[edit]Main article: Information storage device
ConstructionAcoustical engineeringArchitectural engineeringBuilding services engineeringCivil
engineeringConstruction engineeringDomestic technologyFacade engineeringFire protection
engineeringSafety engineeringSanitary engineeringStructural engineeringEducationalEducational
softwareDigital technologies throughout educationICT within educationImpactMultimedia
learningVirtual campusVirtual educationEnergyNuclear engineeringNuclear technologyPetroleum
engineeringSoft power technologyEnvironmentalClean technologyClean coal technologyEcological
designEcological engineeringEcotechnologyEnvironmental engineeringEnvironmental engineering
scienceGreen buildingGreen nanotechnologyLandscape engineeringRenewable energySustainable
designSustainable engineeringIndustrialAutomationBusiness informaticsEngineering
managementEnterprise engineeringFinancial engineeringIndustrial biotechnologyIndustrial
engineeringIndustrial gasMetallurgyMining engineeringProductivity improving
technologiesResearch as well as developmentIT and communicationsArtificial intelligenceBroadcast
engineeringComputer engineeringComputer scienceInformation technologyMusic
technologyOntology engineeringRF engineeringSoftware engineeringTelecommunications
engineeringVisual technologyWeb engineeringMilitaryArmy engineering maintenanceElectronic
warfareMilitary communicationsMilitary engineeringStealth technologyTransportAerospace
engineeringAutomotive engineeringNaval architectureSpace technologyTraffic
engineeringTransport engineeringOther applied sciencesCryogenicsElectroopticsElectronicsEngineering geologyEngineering physicsHydraulicsMaterials
scienceMicrofabricationNanoengineeringOther engineering
fieldsAudioBiochemicalCeramicChemicalPolymerControlElectricalElectronicEntertainmentGeotechni
calHydraulicMechanicalMechatronicsOpticalProteinQuantumRoboticsAnimatronicsSystemsCompone
ntsInfrastructureInventionTimelineKnowledgeMachineSkillCraftToolGadgetScaleFemtotechnologyPi
cotechnologyNanotechnologyMicrotechnologyMacro-engineeringMegascale
engineeringHistoryPrehistoric technologyNeolithic RevolutionAncient technologyMedieval
technologyRenaissance technologyIndustrial RevolutionSecondJet AgeDigital RevolutionInformation
AgeTheories and
The business worth of information technology lies inside the automation of enterprise processes,
provision of knowledge pertaining to choice making, connecting organizations making use involving
their customers, as well as the provision of productivity resources to become able to increase
efficiency.
Hilbert as well as Lopez identify your exponential pace associated with technological alter (a sort of
Moore's law): machines' application-specific capacity in order to compute information per capita
approximately doubled each as well as every 14 weeks among 1986 as well as 2007; your for each
capita capacity with the world's general-purpose computers doubled every eighteen months
throughout the same 2 decades; your global telecommunication capacity for each capita doubled
every 34 months; your world's storage capacity per capita necessary approximately 40 several weeks
for you to double (every 3 years); as well as per capita broadcast details features doubled every 12.3
years.[23]
Further reading[edit]Allen, T., and also M. S. Morton, eds. 1994. Info Technologies as well as the
Corporation with the 1990s. New York: Oxford School Press.Gleick, James (2011).The Information: A
New History, any Theory, a new Flood. New York: Pantheon Books.Shelly, Gary, Cashman, Thomas,
Vermaat, Misty, and Walker, Tim. (1999). Discovering Computers 2000: Concepts to find a
Connected World. Cambridge, Massachusetts: Program Technology.Webster, Frank, and also
Robins, Kevin. (1986). Details Technologies " Any Luddite Analysis. Norwood, NJ: Ablex.
In an academic context, the particular Association with regard to Computing Machinery defines IT
as "undergraduate degree applications which prepare students to fulfill the computer technology
wants regarding business, government, healthcare, schools, as well as other kinds associated with

8. organizations .... IT specialists assume duty pertaining to selecting hardware along with software
program items suitable for an organization, integrating these goods with organizational needs as
well as infrastructure, along with installing, customizing, and maintaining these apps for your
organization"s pc users."[39]
Citations