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ICT Short Course Revision Notes 2009
Jack Bennett, 11O


::Computer Systems::
Components and Types General Terms

Hardware is the physical parts of computers, e.g. CPU, monitor, keyboard, mouse,
printer etc.

The CPU (Central Processing Unit) is the brain of the computer consisting of the
control unit and arithmetic and logic…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O

Video digitaliser: can capture film from video camera digitally.

Digital camera: stores images digitally without the need of a film.

Scanner: working principally the same as a photocopier, except the output is a digital
format of the original hard copy, stored…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O

Magnetic tape is another type of storage media which before its decline, was
available in cassette form. They were frequently used for backups because they have
a larger storage capacity than a floppy disk.

CD-ROMs are capable of storing much more…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O

Videoconferencing allows groups of people to hold meetings large distances away
from each other. Teleconferencing is not used as commonly nowadays as
videoconferencing, but works on the same principle, except using sound instead of
video.


Data

Different data types are required…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O

However, some new jobs have obviously been created as a result of increased use of
ICT, such as computer repairers, user support staff, computer programmers etc.
Other jobs have been changed and it is increasingly necessary to train staff to do…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O

Common editing features are using cut and paste to move text (and other
manipulations of text) as well as changing existing characters.

Common formatting features are bold, italics, underline, centre, justify, borders,
tabs, font manipulations and margin adjustment.

Editing and formatting…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O

Clipart is a library of images which may come with the software or separately on a
CD of some sort.

CAD (Computer Aided Design) has additional features to assist designers when
they draw up plans. Graphics and CAD packages have many…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O



Data Logging, Programming and Control Software

Data logging is about automatically collecting all types of data, without the need for
a human operator ­ sensors are used to gather data by detecting all sorts of
conditions, they behave like input devices.…

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ICT Short Course Revision Notes 2009
Jack Bennett, 11O

Internet browser software allows the users to search, store favourite webpage
addresses, keep a history of webpages visited, browse backwards or forwards
amongst the pages visited and return to the HOMEPAGE easily.

An intranet contains webpages which contain information about the…

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Emilie

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really useful :)

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