onebyte-iconOneByte is a simple learning object which simulates a single byte of data – ie a unit of 8 binary digits. It is intended to help anyone studying or interested in computing  fundamentals to gain an understanding of the place value of binary numbers and how decimal numbers are represented in binary form.

OneByte allows the user to set individual bits ON or OFF by tapping and instantly see the resulting decimal value of the byte. By providing immediate feedback it helps the learner quickly gain an understanding through ‘hands-on’ manipulation of binary numbers.



OneByte is intended to provide an experiential way to learn about binary numbers, bits and bytes.

It can be used as part of a structured learning process or a more discovery learning approach.


© Paul Left, 2015.

You are free to download and copy OneByte for your own personal use.

OneByte can be customised on request. For example, if you would like to distribute a version branded for your own school or institution, please contact me.


  1. Ensure that you have enabled ‘Unknown Sources’ in your device’s Security settings.
  2. Download the OneByte.apk file from to your Android device.
  3.  If the app does not automatically install, open the Downloads folder and tap the file to install it.

Suggestions, comments or questions about this app are welcome: leave a comment below or send email via the contact page.

Future development

A version which incorporates a testing function is planned.

If you would like to request other features or give feedback, please contact me.

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