Cambridge IAL Computer Science study guide
Cambridge IAL Computer Science · Work through your exam, one topic at a time.
Cambridge International AS & A Level Computer Science (9618) is a written examination qualification offered through Cambridge schools, aimed at learners preparing for higher education courses in computer science and for digital employers. The syllabus description says it encourages learners to meet the needs of both, to think creatively by applying practical programming solutions, and to demonstrate that they are effective users of technology. The Cambridge IAL Computer Science study guide has 5 sections and about 2,277 words.
01Computational thinking
This domain tests whether you can convert a vague problem statement into a precise, finite, terminating procedure, then argue about how much work that procedure does. Marks come from explicit decomposition, justified abstraction, and pseudocode with correct indentation and a stated stopping condition.
447 words, about 2 min02Programming paradigms
A paradigm is a style of programming with its own model of computation. The exam asks you to recognise which one a given program uses and to justify choosing it.
457 words, about 2 min03Communication
This domain covers how data moves between devices: network models, the layered protocol stack, addressing, and the protocols that sit on top. Questions usually ask you to match a protocol to a layer or purpose, or to calculate addressing values.
427 words, about 2 min04Computer architecture and hardware
This domain examines the stored-program machine: how instructions and data share one memory, how the processor fetches and executes them, and how the memory hierarchy and instruction-set design affect performance. Instructions and data share one memory and one set of buses.
465 words, about 2 min05Data representation and structures
This domain covers how numbers, text, images and sound are encoded in binary, and how collections of data are organised so operations are efficient. Calculations - file sizes, two's complement ranges, normalised floating point - are examined as much as definitions.
481 words, about 2 min