%PDF-1.3 1 0 obj << /Type /Catalog /Outlines 2 0 R /Pages 3 0 R >> endobj 2 0 obj << /Type /Outlines /Count 0 >> endobj 3 0 obj << /Type /Pages /Kids [6 0 R 13 0 R ] /Count 2 /Resources << /ProcSet 4 0 R /Font << /F1 8 0 R /F2 9 0 R /F3 10 0 R /F4 11 0 R >> /XObject << /I1 12 0 R >> >> /MediaBox [0.000 0.000 612.000 792.000] >> endobj 4 0 obj [/PDF /Text /ImageC ] endobj 5 0 obj << /Creator (DOMPDF) /CreationDate (D:20210922174406+00'00') /ModDate (D:20210922174406+00'00') /Title (IT-artikels) >> endobj 6 0 obj << /Type /Page /Parent 3 0 R /Contents 7 0 R >> endobj 7 0 obj << /Length 5926 >> stream 0.702 0.800 0.816 rg 34.016 34.016 543.969 723.969 re f 1.000 1.000 1.000 rg 45.266 78.220 521.469 668.514 re f 0.773 0.773 0.773 rg 0.773 0.773 0.773 RG 45.266 746.734 m 566.734 746.734 l 565.984 745.984 l 46.016 745.984 l f 566.734 746.734 m 566.734 78.220 l 565.984 78.220 l 565.984 745.984 l f 45.266 746.734 m 45.266 78.220 l 46.016 78.220 l 46.016 745.984 l f 61.016 617.359 m 550.984 617.359 l 550.984 618.109 l 61.016 618.109 l f 1.000 1.000 1.000 rg BT 278.868 698.693 Td /F1 10.5 Tf [(POST LIST)] TJ ET 0.200 0.200 0.200 rg BT 212.789 670.111 Td /F1 14.4 Tf [(INFORMASIETEGNOLOGIE)] TJ ET BT 221.824 643.466 Td /F1 11.7 Tf [(INFORMATION TECHNOLOGY)] TJ ET BT 61.016 583.841 Td /F1 14.4 Tf [(WHAT IS THE CLOUD?)] TJ ET 0.400 0.400 0.400 rg BT 61.016 564.033 Td /F3 9.0 Tf [(This isn't a philosophical musing or the start of a poem. We're )] TJ ET BT 61.016 553.044 Td /F3 9.0 Tf [(referring to the type of cloud containing data, not water. The )] TJ ET BT 61.016 542.055 Td /F3 9.0 Tf [(latest buzzword the past few months is "cloud computing", but )] TJ ET BT 61.016 531.066 Td /F3 9.0 Tf [(what is "the cloud"?)] TJ ET BT 61.016 511.077 Td /F3 9.0 Tf [(Cloud computingis the use ofcomputingresources \(hardware )] TJ ET BT 61.016 500.088 Td /F3 9.0 Tf [(and software\) delivered as a service over anetwork \(typically )] TJ ET BT 61.016 489.099 Td /F3 9.0 Tf [(theInternet\).In other words, it's a grid of computers set up in )] TJ ET BT 61.016 478.110 Td /F3 9.0 Tf [(such a way that it can host a service to deliver software and )] TJ ET BT 61.016 467.121 Td /F3 9.0 Tf [(data. Websites and server-based applications run on specific )] TJ ET BT 61.016 456.132 Td /F3 9.0 Tf [(computers or servers.)] TJ ET BT 61.016 436.143 Td /F3 9.0 Tf [(The difference with a cloud, however is that the cloud uses a )] TJ ET BT 61.016 425.154 Td /F3 9.0 Tf [(collective virtual computer, which runs independently from )] TJ ET BT 61.016 414.165 Td /F3 9.0 Tf [(another computer or specific server configurations. To quote T. )] TJ ET BT 61.016 403.176 Td /F3 9.0 Tf [(Grance and W. Jansen)] TJ ET BT 155.561 403.176 Td /F3 9.0 Tf [(\(Guidelines on Security and Privacy in )] TJ ET BT 61.016 392.187 Td /F3 9.0 Tf [(Public Cloud Computing\))] TJ ET BT 160.547 392.187 Td /F3 9.0 Tf [(- "The common characteristics most )] TJ ET BT 61.016 381.198 Td /F3 9.0 Tf [(\(clouds\) share are on-demand scalability of highly available and reliable pooled computing resources, secure access to )] TJ ET BT 61.016 370.209 Td /F3 9.0 Tf [(metered services from nearly anywhere, and dislocation of data and services from inside to outside the organization.")] TJ ET BT 61.016 350.220 Td /F3 9.0 Tf [(With broadband internet, the need to have the software run on your computer or on a companys site is becoming less and )] TJ ET BT 61.016 339.231 Td /F3 9.0 Tf [(less essential. A lot of the software that people use nowadays is completely web-based. The cloud takes advantage of that )] TJ ET BT 61.016 328.242 Td /F3 9.0 Tf [(to bring it to the next level. Proponents claim that cloud computing allows enterprises to get their applications up and )] TJ ET BT 61.016 317.253 Td /F3 9.0 Tf [(running faster, with improved manageability and less maintenance, and enables IT to more rapidly adjust resources to )] TJ ET BT 61.016 306.264 Td /F3 9.0 Tf [(meet fluctuating and unpredictable business demand.)] TJ ET BT 61.016 286.275 Td /F3 9.0 Tf [(End users access cloud-basedapplicationsthrough aweb browseror a light-weight desktop ormobile appwhile the)] TJ ET BT 61.016 275.286 Td /F3 9.0 Tf [(business softwareand user's data are stored on servers at a remote location.Cloud computing relies on sharing of )] TJ ET BT 61.016 264.297 Td /F3 9.0 Tf [(resources to achieve coherence andeconomies of scalesimilar to autility\(like theelectricity grid\) over a network.At the )] TJ ET BT 61.016 253.308 Td /F3 9.0 Tf [(foundation of cloud computing is the broader concept ofconverged infrastructureandshared services.)] TJ ET BT 61.016 233.319 Td /F3 9.0 Tf [(Please keep in mind that cloud storage is NOT recommended for institutional and academic information \(see definitions )] TJ ET BT 61.016 222.330 Td /F3 9.0 Tf [(below\). If you do decide to make use of cloud storage, rather use it for your personal information or non-critical information.)] TJ ET BT 61.016 202.341 Td /F3 9.0 Tf [(In terms of the draft)] TJ ET BT 141.557 202.341 Td /F3 9.0 Tf [(Information Management Policy)] TJ ET BT 268.106 202.341 Td /F3 9.0 Tf [(, the following information categories and sensitivity categories are )] TJ ET BT 61.016 191.352 Td /F3 9.0 Tf [(defined:)] TJ ET BT 61.016 171.363 Td /F3 9.0 Tf [(1.1.1. Two overarching information categories are defined:)] TJ ET BT 61.016 151.374 Td /F3 9.0 Tf [(a\))] TJ ET BT 84.029 151.374 Td /F4 9.0 Tf [(Academic information)] TJ ET BT 178.547 151.374 Td /F4 9.0 Tf [()] TJ ET BT 181.049 151.374 Td /F3 9.0 Tf [(is information that comprises academic content \(including library, learning materials, )] TJ ET BT 61.016 140.385 Td /F3 9.0 Tf [(research output, etc.\).)] TJ ET BT 61.016 120.396 Td /F3 9.0 Tf [(b\))] TJ ET BT 81.527 120.396 Td /F4 9.0 Tf [(Institutional information)] TJ ET BT 184.532 120.396 Td /F4 9.0 Tf [()] TJ ET BT 187.034 120.396 Td /F3 9.0 Tf [(is information that the University as organisation, including its staff, students and other )] TJ ET BT 61.016 109.407 Td /F3 9.0 Tf [(stakeholders, owns, or is the custodian of, as well as any information that is not classified as academic information.)] TJ ET BT 61.016 89.418 Td /F3 9.0 Tf [(1.1.2. 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What is the “cloud”?

This isn’t a philosophical musing or the start of a poem. We’re referring to the type of cloud containing data, not water. The latest buzzword the past few months is “cloud computing”, but what is “the cloud”?

Cloud computing is the use of computing resources (hardware and software) delivered as a service over a network (typically the Internet). In other words, it’s a grid of computers set up in such a way that it can host a service to deliver software and data. Websites and server-based applications run on specific computers or servers.

The difference with a cloud, however is that the cloud uses a collective virtual computer, which runs independently from another computer or specific server configurations. To quote T. Grance and W. Jansen (Guidelines on Security and Privacy in Public Cloud Computing) – “The common characteristics most (clouds) share are on-demand scalability of highly available and reliable pooled computing resources, secure access to metered services from nearly anywhere, and dislocation of data and services from inside to outside the organization.”

With broadband internet, the need to have the software run on your computer or on a company’s site is becoming less and less essential. A lot of the software that people use nowadays is completely web-based. The cloud takes advantage of that to bring it to the next level. Proponents claim that cloud computing allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and enables IT to more rapidly adjust resources to meet fluctuating and unpredictable business demand.

End users access cloud-based applications through a web browser or a light-weight desktop or mobile app while the business software and user’s data are stored on servers at a remote location.Cloud computing relies on sharing of resources to achieve coherence and economies of scale similar to a utility (like the electricity grid) over a network. At the foundation of cloud computing is the broader concept of converged infrastructure and shared services.

Please keep in mind that cloud storage is NOT recommended for institutional and academic information (see definitions below). If you do decide to make use of cloud storage, rather use it for your personal information or non-critical information.

In terms of the draft Information Management Policy, the following information categories and sensitivity categories are defined:

1.1.1.      Two overarching information categories are defined:

a)      Academic information is information that comprises academic content (including library, learning materials, research output, etc.).

b)     Institutional information is information that the University as organisation, including its staff, students and other stakeholders, owns, or is the custodian of, as well as any information that is not classified as academic information.

1.1.2.      Four categories of information sensitivity, in descending order of sensitivity, are defined:

a)      Confidential information is information that was provided or is used in confidence and that may only be accessed by or shared with authorised persons on a need-to-know basis.

b)     Personal information is a specific type of Confidential Information and is defined as information that can be used to identify an individual or information about an identifiable individual and information that is defined by relevant legislation as personal information.

c)      Operationally sensitive information (default sensitivity) is information that is used in the day-to-day operations of the University and is classified as sensitive to very sensitive depending on the extent to which its divulgence will adversely affect the University’s image or operations.

d)     Public information is published for public or general.

<< What are the advantages and disadvantages of cloud storage?

 

SOURCES: http://www.makeuseof.com/tag/cloud-computing-work-technology-explained/ & http://en.wikipedia.org/wiki/Cloud_computing

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2 Responses to “What is the “cloud”?”

  1. Sonja van der Westhuizen says:

    Hi Steph,

    thanks for your comment. There are many more options we didn’t cover, so thanks for mentioning Mendeley. For those interested – Mendeley is a free reference manager and academic social network that can help you organize your research, collaborate with others online, and discover the latest research. http://www.mendeley.com/.

  2. Steph Bredenhann says:

    Good article, but what about sites that manages references like Mendeley, etc. Acedemics should use these sources or are they not classified as web cloud services?

 

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