You can use this abacus to investigate how different number bases
work. Common bases in Computing and *GCSE Computer Science*
are base 2 (*binary*),
base 8 (*octal*) and base16 (*hexadecimal*).

Click on the beads to slide them left or right. Work in base

1

0

2

0

4

0

8

0

16

0

32

0

64

0

128

0

0

The purpose of this abacus is to introduce *KS3 Computing* and
GCSE Computer Science students to different number
bases, including binary
and hexadecimal.