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Data Representation in Computing: Bring Data to Life

Learn how data is represented through media; audio, visual and text. Supported by Google.

4,889 enrolled on this course

Data Representation in Computing: Bring Data to Life
The CPD Certification Service

This course has been certified by the CPD Certification Service as conforming to continuing professional development principles. Find out more.

Learn how data is represented through media; audio, visual and text.

This online course from the Raspberry Pi Foundation explores how computers do interesting things with data. You’ll discover how to represent and manipulate text, images and sound and compression and other algorithms.

Syllabus

  • Week 1

    Representing numbers, text and colours

    • About this course

      Learn more about what you'll be learning over the course, and meet our educators and the other participants who will accompany you.

    • How do computers bring data to life?

      Start to explore how computers use ones and zeroes to represent everything, beginning with representing numbers in binary.

    • From Binary to Language

      How do we use 1s and 0s to represent text, including characters from different languages?

    • From Binary to Colours

      Find out how to represent colours using binary and hexadecimal.

    • End of Week 1

      Congratulations — you have successfully completed the first week of the course!

  • Week 2

    Representing and manipulating Images

    • Images as Data

      How are images stored on a computer, either as bitmaps or vector images?

    • Exploring and manipulating bitmap images.

      Investigate bitmap images in more detail, and see how changing the pixel values can alter the image

    • End of Week 2

      Review what you've learnt about images by hiding a message inside an image

  • Week 3

    Representing sound & compressing files

    • Sounds as data

      Discover how sound is sampled and represented in binary

    • Compression

      Discover how lossy and lossless compression can be used to reduce the size of files.

Who is this accredited by?

The CPD Certification Service
The CPD Certification Service:

The CPD Certification Service was established in 1996 and is the leading independent CPD accreditation institution operating across industry sectors to complement the CPD policies of professional and academic bodies.

When would you like to start?

Start straight away and learn at your own pace. If the course hasn’t started yet you’ll see the future date listed below.

Learning on this course

If you'd like to take part while our educators are leading the course, they'll be joining the discussions, in the comments, between these dates:

  • 6 Dec 2021 - 24 Dec 2021

On every step of the course you can meet other learners, share your ideas and join in with active discussions in the comments.

What will you achieve?

By the end of the course, you‘ll be able to...

  • Describe how computers represent things in binary
  • Explain common text encoding (ASCII and UTF-8)
  • Investigate the physics of sound, and how sampling allows computers to represent sounds
  • Compare lossy and lossless compression
  • Evaluate whether to use a bitmap or a vector image

Who is the course for?

This course is designed at GCSE-Level to A-Level educators and learners. This course has a focus on supporting educators looking for an engaging way of teaching GCSE Computer Science concepts.

We recommend that learners have a basic understanding of Python, for example gained from our Programming 101 course for beginners

An understanding of binary is helpful but not necessary (you may be interested in our How Computers Work course)

Due to its section on the representation of images, this course includes several steps and questions based around visual content.

What software or tools do you need?

To complete optional coding challenges in this course you will need to download a Python IDE (Integrated Developer Environment) such as Mu.

Who will you learn with?

Hey, my name is Mac. I am a Learning Manager at The Raspberry Pi Foundation. I love teaching and digital making, especially when I get to do them both at the same time.

Caitlyn creates and develops Raspberry Pi resources. She is a former teacher, and a postgrad student in social innovation. She likes open tech, the outdoors, art, music, games and anything scifi.

Who developed the course?

Raspberry Pi Foundation

The Raspberry Pi Foundation works to put the power of digital making into the hands of people all over the world, so they are capable of understanding and shaping our increasingly digital world.

National Centre for Computing Education

This course is part of our professional development teacher programme for the National Centre for Computing Education (NCCE). Our nationally-recognised certificates cater for all levels of teaching.

Funded by the Department for Education and supporting partners, we aim to transform the way computing is taught in schools across England, and enable more young people to benefit from studying this important subject.

Endorsers and supporters

supported by

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Unlimited

$15.83/month

Billed at $189.99 for a year

Learners who purchase Unlimited complete 15x as many courses!*

  • Access to this course
  • Access to ALL eligible short courses with additional benefits, for a year
  • Discuss your learning in comments
  • Digital certificate when you're eligible

Upgrade this course

$49

Unlock your expertise

  • Access to this course
  • Discuss your learning in comments
  • Printed and digital certificate when you’re eligible

Basic access

Free

Try before you buy

  • Limited access to course content for 5 weeks

Find out more about certificates, Upgrades or Unlimited.

Sale price available until 6 December 2021 at 23:59 (UTC). T&Cs apply.

Join this course for free with basic access. Access to this course only limited to 5 weeks. Excludes certificates.

*FutureLearn considers a short course complete when a learner has engaged with 90% of the content. Learners who began a 1 year subscription period of Unlimited in October 2019 to September 2020 (inclusive) generated 14.78 times as many completed enrolments per user in that year than users who joined FutureLearn in October 2019 to September 2020 (inclusive) generated in their first year of enrolment.

*FutureLearn considers a short course complete when a learner has engaged with 90% of the content. Learners who began a 1 year subscription period of Unlimited in October 2019 to September 2020 (inclusive) generated 14.78 times as many completed enrolments per user in that year than users who joined FutureLearn in October 2019 to September 2020 (inclusive) generated in their first year of enrolment.

Learning on FutureLearn

Your learning, your rules

  • Courses are split into weeks, activities, and steps, but you can complete them as quickly or slowly as you like
  • Learn through a mix of bite-sized videos, long- and short-form articles, audio, and practical activities
  • Stay motivated by using the Progress page to keep track of your step completion and assessment scores

Join a global classroom

  • Experience the power of social learning, and get inspired by an international network of learners
  • Share ideas with your peers and course educators on every step of the course
  • Join the conversation by reading, @ing, liking, bookmarking, and replying to comments from others

Map your progress

  • As you work through the course, use notifications and the Progress page to guide your learning
  • Whenever you’re ready, mark each step as complete, you’re in control
  • Complete 90% of course steps and all of the assessments to earn your certificate

Want to know more about learning on FutureLearn? Using FutureLearn

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