//9618 (A Level)

A Level

Builds on AS: advanced theory, data structures, computational thinking and object-oriented programming.

Paper 3 — Advanced TheoryPaper 4 — Practical

//Paper 3 — Advanced Theory

Data Representation

Floating-point numbers: how a computer stores fractions, and why it sometimes gets them slightly wrong.

Communication and Internet Technologies

How data actually gets across the internet: protocols in layers, and circuit vs packet switching.

Hardware and Virtual Machines

Processor design choices, parallel processing, and running one computer inside another.

System Software

How the operating system shares one processor between many programs, and manages memory.

Encryption in depth, digital signatures, certificates and how a secure connection is set up.

Artificial Intelligence

Machine learning, neural networks, and the graph algorithms behind route finding.

//Paper 4 — Practical

Computational Thinking and Data Structures

Recursion, and the classic structures: stacks, queues, linked lists and trees.

Further Programming

Object-oriented programming, files, and handling errors without crashing.

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A Level — Cambridge