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INFO 2 Notes




Topic 1 What is ICT?

Components of an ICT system:

Hardware
People
Data
Information
Procedures
Software

Types of system:
Banking (debited, account number, receipt)
Payroll (Staff number, hours, pay)
EPOS (tesco)
Stock Control
Restaurant

Topic 2 Data and information

Information is only valuable and useful when it…

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GUI ­ Graphical user interface, WIMP(Windows, Icons, Menus and pointers) Used as
operating systems on things like smart phones
+ User friendly
+ Intuitive for non experts
- Frustrating for some experts as things are easily lost
- Demanding on hardware

Command line ­ Disk operating system…

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All networks and key words are on definitions page

Advantages of sharing resources:
Saving on network drives
Reduces time waiting or finding resources
Saves money spend on providing resources

Intranet and extranet (image to help show definition on sheet)




Intranet Extranet


Peer to peer network: Simple and…

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Ring




Star




Mesh




Topic 5 ­ Safety and Security

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Standards are defined in definition table

Threats in the workplace include:

Employees: - Selling confidential data
Lost or passed on data
Attachments on removable storage to sabotage
Third parties

Human error: - Failure to follow procedures
Storing hard copies or destroying data

Viruses: - Removable media
Attachments…

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Data protection act 1998
Regulates how personal data is used and protects it from misuse
If you with to store personal data about people you have to register
with IC (information commissioner) who will ask what data you are
storing, how long it will be stored for…

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This act applies to software, music, videos and all other creative software to protect
the maker's creation. This does not relate to the idea, you can produce a similar
product but not copy or adapt the original.
When you purchase and open the packaging from a game,…

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Where will it be stored? Away from original server against hazards, stored in
flood/fire proof safe

Definitions for incremental, differential and full back ups in definition table.

Backup type Time for backup Time for restore Storage space
Full Longest Quickest Most
Differential Medium Medium Medium
Incremental Quickest…

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Takes time to develop a complex system
Less personalized
May not need an ICT solution

Processing types on definition sheet

Topic 8 ­ Factors affecting ICT

Cultural ­ Effected by developing countries (low levels of technology and lack
of money), changes in culture (texting rather than calling,…

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work may not be authentic, equipment is requires, removes the social
aspect of school and can result in paedophillia.

Comments

oluoniw

Good resource, thank you.

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