A comprehensive summary of IT Theory on a Grade 10 Level. It contains all the necessary information in a colourful, table format.
All information has been typed for improved legibility. These notes have been used by hundreds of learners throughout my school (including myself) and is guaranteed to...
LU2 - Overview of a Computer
1. Hardware and Software
Hardware and Software They interact together to ensure that the computer can successfully:
● Receive input data
● Process the data
● Store the data
● Output the information
● Neither could exist on their own
Hardware The collection of physical components attached to
the computer system
Software The collection of non-physical parts of the system
(OS, apps and data)
General Processing Cycle ● The CPU is fed instructions that are stored in RAM
● RAM receives data from input devices
● Sends data to an output device
CPU can only execute instructions that are in RAM
Connectivity and an ICT ● ICT - Information and Communication Technology
System ● With internet, computers ‘talk’ to each other and exchange data
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