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Year 9 Computing, image - Coggle Diagram
Year 9 Computing
Networking
Hardware
Switch
Ethernet
Hub
Ethernet Cable
Server
Client
Internet
Infrastructure that connects computers together
World Wide Web
Software
Browser
Search Engine
Protocols
Rules to tell computers how to talk to each other
HTTP
HTTPS
Data Representation
Binary conversion
128 64 32 16 8 4 2 1
Compare the value, if it will fit turn in on (1)
Calculating picture file sizes
Need to know the width, height and colour depth
Colour depth- the number of bits needed to store a value
Calculating text file sizes
Number of characters * by the bits per character
Character set
A group of values that represent numbers.
ASCII- uses 8 bits per character
Python
Output
print statement syntax
Input
Using variables
Declare variables
Assignment operator
Correct syntax
Selection statements
Routes through a program
Using IF, ELIF and ELSE
Environmental Impacts
Postives
More efficient modelling of data
More efficient use of fuel in cars
Predicting weather changes
Using data to start work on predicting natural disasters
Negatives
Large water usage for cooling data centres
Large use of power which produces carbon dioxide
Extraction of raw and rare materials
Unethical recycling- e.g. the burner boys in Ghana
Media Editing
Tools
Blade
Fade In
Fade Out
Link Title
Transitions
Wipe
Jump Cut
Crossfade
Why do we edit?
