denary
base 10
binary
base 2
hexadecimal
base 16
bit
binary digit
00101101
45
0 + 0
= 0
0 + 1
= 1
1 + 0
= 1
1 + 1
= 10 (2)
11010001 + 10010100
= 01100101
right shift
4x smaller
left shift
4x bigger
2 right shifts of 1000.
10.00 = 2
3 left shifts of 1100.
110000 = 48
hex letters
A=10 B=11 C=12 D=13 E=14 F=15 …