AQA GCSE COMPUTER SCIENCE PAPER 2
WRITTEN ASSESSMENT 2026 EXAMINATION
TEST COMPLETE QUESTIONS AND ANSWERS
GRADED A+
◉ system software. Answer: designed to provide a platform for
other software
◉ application software. Answer: allows the user to perform a
specific job or task
◉ ALU. Answer: Arithmetic and Logic Unit - does all mathematical
calculations and makes all logical decisions
◉ control unit. Answer: circuitry that directs and coordinates
operations within a processor
◉ register. Answer: quickly accessible location available to CPU
◉ bus. Answer: a communication system that transfers data
between components inside a computer, or between computers
, ◉ clock speed. Answer: how many instructions the CPU can process
each second
◉ clock. Answer: synchronises the internal operations of the CPU
with other system components
◉ interpreter. Answer: directly executes instructions written in a
programming language
◉ compiler. Answer: translates code in a high-level language to
machine instructions
◉ assembler. Answer: translates an assembly-language program into
machine code
◉ main memory. Answer: stores temporary data - plays a large part
of the computer's performance
◉ secondary storage. Answer: stores permanent data
◉ pixel. Answer: the smallest element in an electronic image
◉ size of bitmap image. Answer: width × height
WRITTEN ASSESSMENT 2026 EXAMINATION
TEST COMPLETE QUESTIONS AND ANSWERS
GRADED A+
◉ system software. Answer: designed to provide a platform for
other software
◉ application software. Answer: allows the user to perform a
specific job or task
◉ ALU. Answer: Arithmetic and Logic Unit - does all mathematical
calculations and makes all logical decisions
◉ control unit. Answer: circuitry that directs and coordinates
operations within a processor
◉ register. Answer: quickly accessible location available to CPU
◉ bus. Answer: a communication system that transfers data
between components inside a computer, or between computers
, ◉ clock speed. Answer: how many instructions the CPU can process
each second
◉ clock. Answer: synchronises the internal operations of the CPU
with other system components
◉ interpreter. Answer: directly executes instructions written in a
programming language
◉ compiler. Answer: translates code in a high-level language to
machine instructions
◉ assembler. Answer: translates an assembly-language program into
machine code
◉ main memory. Answer: stores temporary data - plays a large part
of the computer's performance
◉ secondary storage. Answer: stores permanent data
◉ pixel. Answer: the smallest element in an electronic image
◉ size of bitmap image. Answer: width × height
