Computing Scotland

Binary Conversion

Binary conversion appears frequently in National 5 and Higher Computing Science.

Please use the above to practice binary to denary conversion

Binary to Denary

Enter either a 1 or a 0 into the box to see what the denary is:

128	64	32	16	8	4	2	1
								RESET

Denary to Binary

Enter your denary (0 - 255):

128	64	32	16	8	4	2	1
0	0	0	0	0	0	0	0

Binary Range

Enter the number of bits:

Two's Complement Normal Binary

Two's Complement

Enter denary (-128 -> 127)

RESET

-128	64	32	16	8	4	2	1
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	INVERT
0	0	0	0	0	0	0	0	ADD 1

Floating Point Representation

Practice Questions