Year 10 - Mock Test 2

Abstraction Decomposition Algorithm Design Pattern Recognition

taking out any unneccesary characteristics

A large problem is broken down into smaller chunks that can then be solved into computing

is the process of identifying patterns in a data set to categorize, process and resolve the information more effectively.

A sequence of steps that can be followed to complete a task…….

they are easier to understand and are less complex than machine code. They allow the programmer to focus on what needs to be done, rather than on how the computer actually works.

Java, C++, Python

True

• Easier to understand • Written in short time • Errors can be debugged at the development stage • Programs can be maintained whilst in use

• Machine code, Binary instructions that are understood by computer • Assembly language that needs to be converted to machine code.​

Are languages that sit close to the computer’s instruction set.

is the set of instructions that the processor understands.

used by programmers to make use of special hardware. ​

The code does not take up much space of primary memory and performs its task quickly. ​

high-speed data storage areas in the computer.​

Hexadecimals or Binary

Is a program that converts source code (known as high level language) into machine code to be executed by the CPU.

Compiler, Interpreter, Assembler

A compiler takes the source code as a whole and translates it into machine code all in one go which can then be directly used by a computer to perform required tasks. ​

• Runs quickly • Can be supplied as an executable file (A file this ready to run). • Optimises code and Optimised code runs quicker and takes less memory space.

• The source code must be re-compiled every time the programmer changes the program. • Source code compiled on one platform will not run on another - the machine code is specific to the processor’s architecture.

An interpreter translates source code into machine code one instruction at a time and then the resulting machine code is executed immediately.

• The instructions are executed as soon as they are translated. • Errors can quickly be spotted - once an error is found, the program stops running and the user is notified at which part of the program the interpretation has failed.

• It run slowly as the processor has to wait for each instruction to be translated before it can be executed. • the program has to be translated every time it is run. • do not optimise code - the translated code is executed as it is.