CAT Syllabus (COMPLETE) Summary

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Cat -




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Summaries -




Owen Venter

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Chapter 1) system technologies

Types of computer systems : different computer systems designed
for specific users SOHO , Personal , Mobile , Power and Enterprise users
. .




Data } Information Data : is made
up of raw facts , and is not

organized Information . is
meaningful knowladge gained from
processing
the data .




Information knowledge and decisions :
knowledge skills , data and
, ,

information are used in combination to make informed decisions .




Reasons for
computers : Computers save paper , time and
using
labour
They lower communication costs They help
.


get work done . us



efficiently , accurately and reliably Time and distance become less of . a




problem We can now communicate .

globally via social networks and web
tools .




Convergence of technologies : manufacturers offer
computing devices
in which
technologies overlap .




Information Input Processing Output Storage
processing cycle
: → -o →




Integration of Input modes : Input modes are
integrated or combined to


improve productivity and
efficiency .