◈ Oracle PrepSign Up Free
O-LevelComputer ScienceProgramming2210/21 · May/June 2015 · Q52 Marks

Explain the difference between a variable and a constant in a program.

  1. Explain the difference between a variable and a constant in a program.[2]

Mark scheme

Marking points from the official mark scheme (May/June 2015). The mark or mark type is shown in brackets.

  1. [1] a variable is used to store data that can change during the running of a program
  2. [1] a constant is used to store data that will not be changed during the running of a program

Write your answer and get it marked

On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.

Sign up free →

About this question

Topic
Programming, O-Level Computer Science (syllabus 2210). Structured question, 2 marks.
Source
O-Level Computer Science, May/June 2015 Paper 2 Variant 1, question 5.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Computer Science questions

ProgrammingMay/June 201620m

Section A You are advised to spend no longer than 40 minutes answering this section. Here is a copy of the pre-releas…

ProgrammingMay/June 20166m

Read this section of program code that inputs 10 positive numbers and then outputs the smallest number input. 1 Small…

ProgrammingMay/June 201620m

The manager of a building materials delivery service needs a program to check the contents and weight of sacks to ens…

SoftwareMay/June 20173m

State three functions provided by an operating system. Function 1 Function 2 Function 3

Automated and emerging technologiesMay/June 20179m

The processes in a chemical factory are monitored by sensors connected to a microprocessor.

The Internet and its usesMay/June 20178m

Gurdeep wants to send a large file to Jennifer over the Internet.

← Browse all past-paper questions

© 2026 Oracle Prep