LO - computing at bbec

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• Is this right?
Hello Bill how
ya doin?
Not bad
Steve but my
hard drive’s
playing up a
bit.
Learn how to decode binary numbers
• NO!!! This is more like it:
10110011
01011010
10000101
10010100
10010100
11010111 10110101
Learn how to decode binary numbers
• Computers communicate and share
data using 1’s and 0’s.
• This is called:
Binary
Learn how to decode binary numbers
• Usually written as 8 bits:
8
+
2
+
1
= 11
• The people holding signs would be 1’s and
those without would be 0’s.
Learn how to decode binary numbers
• The 8 bits represent:
– 128, 64, 32, 16, 8, 4, 2, 1
– So to convert 0 0 0 1 0 1 0 1 we can use the
table below:
128
64
32
16
8
4
2
1
0
0
0
1
0
1
0
1
Adding these together gives
21
Learn how to decode binary numbers
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