Computer science
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PLEASE NOTE: Anything sent to us will either be laughed at, taken seriously and acted upon or forwarded to a local or national security agency. We also reserve the right to publish any feedback/comments on our website without any permission whatsoever. This website was made to help students everywhere and so far, apart from one troll the feedback has been entirely positive. We love you and think you are amazing (until you prove otherwise). Be excellent in everything you do and say.  Goodluck!

Frequently asked questions

 
Who are you?
Nobody in particular.
 
Am I able to sign up a whole school class to use the website?
No sign up required, just use the website as it is. (if you want to record student results, get them to screen print/grab/shot their work/results)
 
Do I have to pay to use the website?
No.
 
If I suggest features, can you add them?
Yes, if they are good/useful/make sense and fit with the website. Please email using the “contact us” bit.

Ive spotted an error, should i tell you?
Yes! Please be very specific as to where the error is. No point telling us that we spelt compooter increctly one some page, some place. Please specify exactly where!
 
Can you remove a link to my website?
Yes. We are not always testing our links to other people’s websites. If the link is no longer valid/good etc, then we will update.
 
What is the best way to use this website?
Revision, a starter in class, a reference when learning Python.
 
Will you add content from other exam boards?
Eventually.
 
Should I click on your (google) adverts?
You can if you want. The website was never about making money but it certainly contains expenses.
 
Is this for GCSE only?
It started for the GCSE, but expanded to A-Levels too (Look under the KS3/OTHER menu). The content is fairly universal so it applies to the IGCSE too. Have a look at the specification you are learning/delivering and you can then tell which parts of this website might be useful to you.
 
Is this only for the United Kingdom?
No. The IGCSE looks like it is taught in Hong Kong, Singapore and Malaysia, United States, Italy and international schools around the world. Our Python part of the website is for anyone of any age who wants a quick and free way to start learning the language.
 
I’m taking my GCSE in computer science and I’m freaking out because there are bits I don’t get, can you help me?
Hopefully there is enough content on the website to get you a starting point. Download your exam board specification and pick a topic. Not everything is on the website (yet), but there is an even split between Theory and (Python) Programming. Are you happy with Binary, Hex as these are good starting points. If you are not learning Python, then find a website that helps you with the language you are learning.
  
Should I use ChatGPT or AI to help me?
One way to use AI is as an electric textbook to help you remove the pain of using a search engine to find stuff and then assume the content it finds is both accurate and specific to what you are learning. AI can write code for you and answer questions for you regarding theory topics, but it is probably better to use it to check your own individual memory and understanding of content, rather than learning new content from it.
 
For example, using the prompts below AI becomes a potentially useful tool:
 
Ask me 5 multiple choice GCSE questions about binary addition
Ask me 5 multiple choice GCSE questions about binary to hexadecimal conversion
Ask me 5 multiple choice GCSE questions about how computers represent images in binary
 
Please note, we have no idea how accurate AI will be using the prompts above. AI is made by humans and the AI receives human bias and nonsense via the data it is given. Perhaps a better name for AI is “Biased and Large Dataset Interpretation” or BALDI. Nevertheless, at some point BALDI will make the use of this website pointless. Humanity had its time, hello BALDI.
 
Thanks to your website, I got a good qualification/job and I am now a tech billionaire. What should I do with all my money?
Stop all BALDIs (or at least put them back in a box until they are not biased)

Most recent feedback

Q: Will you be creating quizzes for A-Level OCR Paper 1
A: Yep. Look in KS3/OTHER above

We may not respond...:( 
but we act on all useful feedback...:)
Check back with the site to see if your suggestions have been implemented.
​You are amazing! keep being you.

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LATEST UPDATES

Feb 20205 - Selection challenges added
Jan 2025 - GameMaker introduced
FEB 2023 - Scratch updates
MARCH 2020 - CH spotted a fix
JUNE 2019 - Useful article regarding compilers added
MAY 2019 - Key stage 3 Python added


  • Exam boards
    • OCR past papers >
      • Paper 1 J277 >
        • Paper1 (Sample) J277
        • Practice paper1 J277
      • Paper 2 J277 >
        • Paper 2 J277 Practice
    • Edexcel past papers >
      • 2020 Current spec (coming soon) >
        • Programming Language Subset (PLS)
      • Old 2016 SPEC >
        • Paper 1 (specimen1)
        • Paper 1 (specimen2)
        • Paper 1 (2018)
        • Paper 1 (2019)
        • Paper 2 (specimen1)
        • Paper 2 (2018)
        • Paper 2 (2019)
      • OLD 2013 SPEC >
        • Sample assessment 1 (old spec)
        • Sample assessment 2 (old spec)
        • June 2017 (old spec)
        • June 2016 (old spec)
        • June 2015 (old spec)
    • Paper 1 (by topic) >
      • Algorithms
      • Application software
      • Ascii
      • Binary
      • Cache
      • Client Server
      • Cloud
      • Compression
      • Computational thinking
      • CPU
      • Cyber security
      • Database
      • Fetch decode execute cycle
      • Embedded system
      • Encryption
      • File size
      • Flow chart
      • Hexadecimal
      • High Level language
      • ISP/Internet
      • Logic
      • Magnetic HDD
      • Networking
      • Open source
      • Operating system
      • Peer to peer
      • Images (Data representation)
      • Protocols
      • RAM
      • ROM
      • Run length encoding
      • Simulation software
      • Solid state HDD
      • Sound
      • Stored program concept
      • Utility software
    • Curriculum >
      • Binary
      • Hex
      • Data Representation
      • Compression
      • Encryption
      • What is a computer
      • How does a computer work
      • Hardware
      • Operating system
      • The CPU
      • Input devices
      • Data storage
      • Networks
      • Microcontrollers
      • Computational models
      • Emerging trends
      • Virtual machine
      • Models and simulators
      • Algorithms
    • Python >
      • Finding python
      • GCSE Python questions
      • Python coding >
        • Comments
        • Data types
        • Variables
        • If Else (Selection)
        • If Elif Else (Selection) >
          • Relational/Comparison Operator challenges
          • Selection challenges
        • Functions
        • For loop (iteration)
        • While loop (iteration) >
          • While loop challenges
        • Data structures >
          • Array challenges
          • 2D Array challenges
          • Looping thru 2D array
        • String slicing/indexing >
          • String slicing challenges
        • Subprograms >
          • Subprogram challenges
        • Local/global variable
        • Validation and try
        • methods
        • File I/O >
          • Files - Challenges
        • Pseudocode
        • Modules >
          • Turtle
        • Classes
        • NEA/Projects
  • KS3/Other
    • KS3 >
      • Coding >
        • GameMaker
        • HTML >
          • HTML tags
        • Scratch >
          • Scratch questions
        • Python >
          • Getting started
          • Functions
          • Variables
          • VariablesToo
          • inputs
          • Selection
          • Flowcharts
          • Data types
          • Pseudocode1
          • Pseudocode2
          • Subprogram1
          • Subprogram2
          • Coding challenges
      • Online Safety >
        • Screen time
        • Online Safety questions
      • IT >
        • Word
        • PowerPoint
      • Hardware >
        • All Hardware
        • Magnetic hard disk drive
        • Optical disk drive
        • Solid state drive
      • Logic >
        • CPU
        • AND gate
        • OR gate
        • NOT gate
        • Logical statements
      • Software
      • Binary/Hex/Algorithms >
        • Binary
        • Binary explained
        • Hexadecimal - 1 digit
        • Hexadecimal - 2 digits
        • Algorithms
        • ASCII
      • Networks
      • Protocols/Cyber attacks
    • BTEC CS
    • OCR A-Level >
      • 1.2 (Unit 2) >
        • Functions of an OS
        • Types of OS
        • Application generation
      • 1.2 (Unit 3) >
        • Software development
        • Algorithms
        • Programming paradigms
      • 1.3 (Unit 5) >
        • Networks
      • 1.5 (Unit 9) >
        • Laws and Acts
      • 2.3 (Unit 12) >
        • Analysis and design of algorithms
    • AQA AS-Level CS >
      • AS Curriculum >
        • Multiple choice questions
    • Business studies >
      • Keywords
      • BS Revision - Multiple choice
      • Paper 1 (9-1)
      • Paper 2 (9-1)
    • Junior Science >
      • 01 - Particles >
        • investigations and data
        • Equipment
        • Particles
      • 02 - Cells >
        • Microscope introduced
        • Looking at cells
        • Specialised cells
        • Unicellular organisms
      • 03 - Energy >
        • Energy introduced
        • Energy transfers
        • Conduction, Convection, Insulators
      • 04 - Chemical ideas & reactions >
        • Periodic table
        • Chemical reactions
        • Chemical reactions2
      • 05 - Light and Sound >
        • Light introduced
        • The Eye
        • Colours and filters
        • Waves and Sound
  • Contact/More
    • Code editor
    • Contact us
    • Microbit ideas
    • More
  • Self test
    • 01 Random topics
    • 02 Programming
    • 03 Data
    • 04 Computers
    • 05 Networks
    • 06 Legal/Ethics/Enviro'
    • Coding/Programming
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