Soek jy 'n effektiewe manier om jou RTT te verstaan? My graad 12 RTT teorie opsommings bied 'n duidelike en samehangende oorsig van al die belangrikste konsepte wat jy moet ken om jou eksamens met selfvertroue aan te pak.
Hardware The tangible parts of a computer Parts we ca
see touch
Information Processing Cycle
1 input
instructions given to the device
example mouse Keyboard Camera Scanner
1 Processing
analysing and processing the instructions
example CPU RAM ROM
3 Output
Provides the results of the processing
example monitor printer speaker
,4 Storage
storing the information for later use
example hard drive flash drive CD DVD
5 Communication
To share the results to others
example modem router switch NIC
keylogging records every keystroke on a keyboard
Hackers install in attempt to steal usernames
passwords or pin numbers
convergence when different technologies are merged
into one device
,Reasons why we use computers
To save and pe productive
saving paper
saving time
saving labour
To be efficient accurate reliability
6160 Garbage In Garbage Out inaccurate in
put provides an inaccurate result
data validation
To have effective time distance
distance you can communicate with anyone anywhere
To be able to communicate globally
web tools
blogs vlogs
wiki's
RSS feeds
web 1.0
, types of computers
personal
Can perform a wide range of tasks
Cheap to buy
processing
entry level CPU RAM
input
mouse keyboard
output
monitor printer
storage
HDD CD DVD
communication
modem
SOHO
single office Home office
using computers and printers in a network
processing
higher CPU RAM
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