Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Development Tools Console Foundations Users and Permissions File Permissions

Aaron Coursolle
Aaron Coursolle
18,014 Points

How many counting systems do computer programmers/developers typically use?

While in theory any counting system is possible, the octal notation system introduced in this video is completely new to me. So that means I have to at least have a basic understanding of

-decimal [aka base 10] -hexadecimal -binary -octal

Are there any other counting systems that I'll have to keep in mind when looking at numbers in computer programming?

Sean Flanagan
Sean Flanagan
33,235 Points

Hi Aaron. I've done octal before. I don't think there are any other systems to bear in mind. I've not seen any, anyway. I've heard of binary, whereby 0 = off and 1 = on, but that's about it.