Edexcel curriculum (2015)

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Python

Binary/Hex

Data representation

Compression

Encryption

What is a computer?

Working computer

Hardware

Operating system

Computer processes

The CPU

Memory

Input devices

Output devices

Data storage

Inside the CPU

Stored program

F-D-E cycle

CPU components

Networks

LAN, WAN and PAN

Network topologies

Network addressing

Protocols

Error detection

The internet

The world wide web

HTML and CSS

Client-server model

VPNs

SQL

Impact

Ethical issues

Microcontrollers

Comp models

Emerging trends

Virtual machines

Models and sims

Algorithms

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Computational models 

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A sequential computational model is one in which instructions are executed one after another. There may be branches in the program, but the general principle is that each instruction follows on from the previous one.

Python programs are sequential.
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A parallel computational model is one in which each program instruction is executed simultaneously on multiple processors in order to get the results faster. Using multi-cores in processors is an example of parallel computing. It is by using parallel processing that super computers are getting faster and faster.

​"How many cores will the NSA data centre have?"

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​Computational model - Multi-agent 

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A multi-agent computational model is one in which computer systems co-operate and co-ordinate with other agents to achieve their goals.

Swarm robots are examples of multi-agents.

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