AQA A LEVEL COMPUTER SCIENCE PAPER 1
ACTUAL EXAM 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
◉ Constant. Answer: An item of data whose value DOESN'T change
◉ Variable. Answer: An item of data whose value COULD change,
while being run
◉ Algorithm. Answer: A sequence of steps that can be followed to
complete a task in a finite number of steps, always terminates.
◉ Element. Answer: A single value within an array (list)
◉ Record. Answer: One line of a text file
◉ Selection. Answer: Principle of choosing what action to take, based
on certain criteria (conditions) - IF & CASE STATEMENTS
◉ Nesting. Answer: Placing one set of instructions inside another set of
instructions
, ◉ Iteration. Answer: Principle of repeating processes - FOR, WHILE,
REPEAT UNTIL
◉ Definite iteration. Answer: Process that repeats a set number of times
- FOR LOOP
◉ Indefinite Iteration. Answer: Process that repeats until a certain
criteria is met - WHILE
◉ Sequence. Answer: Principle of putting the correct instructions in the
right order within a program
◉ Truncating. Answer: Process of cutting off a number after a certain
number of characters or d.p
◉ Character Code. Answer: A unique binary representation of a
particular letter, number etc.
◉ Subroutine. Answer: A named block of code designed to carry out a
specific task
◉ Advantages of subroutines. Answer: More readable code
Allows code to be reused
ACTUAL EXAM 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
◉ Constant. Answer: An item of data whose value DOESN'T change
◉ Variable. Answer: An item of data whose value COULD change,
while being run
◉ Algorithm. Answer: A sequence of steps that can be followed to
complete a task in a finite number of steps, always terminates.
◉ Element. Answer: A single value within an array (list)
◉ Record. Answer: One line of a text file
◉ Selection. Answer: Principle of choosing what action to take, based
on certain criteria (conditions) - IF & CASE STATEMENTS
◉ Nesting. Answer: Placing one set of instructions inside another set of
instructions
, ◉ Iteration. Answer: Principle of repeating processes - FOR, WHILE,
REPEAT UNTIL
◉ Definite iteration. Answer: Process that repeats a set number of times
- FOR LOOP
◉ Indefinite Iteration. Answer: Process that repeats until a certain
criteria is met - WHILE
◉ Sequence. Answer: Principle of putting the correct instructions in the
right order within a program
◉ Truncating. Answer: Process of cutting off a number after a certain
number of characters or d.p
◉ Character Code. Answer: A unique binary representation of a
particular letter, number etc.
◉ Subroutine. Answer: A named block of code designed to carry out a
specific task
◉ Advantages of subroutines. Answer: More readable code
Allows code to be reused
