1.2.6 Binary Flashcards
1
Q
From what side does binary read from?
A
Right to left
2
Q
How does binary work?
A
From right to left, every digit is 2 to the power of one number bigger each time.
3
Q
What is 10111?
A
1x2⁰=1 1x2¹=2 1x2²=4 0x2³=0 1x2⁴=16 = 1+2+4+16= 23
4
Q
How do you convert a decimal number into binary?
A
Use a binary table.
5
Q
What is 10010?
A
0+2+0+0+16 = 18.
6
Q
What is the number scale in binary?
A
The number used to for the powers, so a 5 would be base 5. So instead of using 2 it would be 5 to the power of x.
7
Q
What other method can you use?
A
Division
8
Q
How else could you convert to base 8 from base 10 for example?
A
Divide it by 8. E.g. 413base10 /8 = 51 remainder 5 which is the first number, 51/8 = 6 remainder 3, 6/8 = 0 remainder 6 so the conversion is 635 base 8
9
Q
What is hexadecimal?
A
Base 16
