Binary Flashcards
1
Q
Why do we use Binary?
A
A computer runs on electricity and binary is used to represent the electricity being turned on and off. 1:On 0:Off
2
Q
What are the binary headings?
A
128 64 32 16 8 4 2 1
3
Q
Convert this to denary:
10101101
128 64 32 16 8 4 2 1
A
173
4
Q
Convert 187 to binary.
128 64 32 16 8 4 2 1
A
10111011
5
Q
In Binary what is 0+0?
A
0
6
Q
In Binary what is 1+0?
A
1
7
Q
In Binary what is 1+1?
A
10
8
Q
In Binary what is 1+1+1?
A
11
9
Q
Calculate:
+00110011
+10001111
A
+00110011
+10001111
————-
11000010
10
Q
Complete these four rules:
0+0=__
__+0=1
1+1=__
1+__+1=__
A
0+0= 0
1 +0=1
1+1= 10
1+ 1 +1= 11
11
Q
What word do computer scientists use for base 10?
A
Denary
12
Q
What is denary?
A
The word computer scientists use for base 10
