binary Flashcards
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Whats is another word for binary
base 2
convert 45 into binary
0010 1101
convert 69 into binary
0100 0101
convert 101 into binary
0110 0101
convert 12 into binary
0110 0101
convert 25 into binary
0001 1001
What do the following equal in binary?
0+0=?
1+0=?
1+1=?
0+0= 0 1+0= 1 1+1= 10
What does this equal:
0101+0010
0111
what does this equal:
0101 0110 + 0000 1100
0110 0010
what does this equal:
0001 0000 + 0101 0110 + 0111 0110
1101 1000
what does MSB stand for?
‘Most Significant Bit’
what is the MSB
The MSB is the bit on the far left of the Binary number you are showing.
Using 8 bits the MSB would be the 128 column.
what is an example of MSB negative numbers?
Example:
00110101 is 53 in Denary
(32 + 16 + 4 + 1)
11001011 is -53 in Denary
(-128 + 64 + 8 + 2 + 1)
how do u convert a negative denary number into binary
To convert a negative denary number into binary follow these steps:
Work out the positive version of the denary number.
Starting from the left, flip all the bits so 1’s become 0’s and 0’s become 1’s.
Keep doing this until you reach the smallest 1. Leave this 1 and any remaining 0’s as they are.
Check it is correct, by converting it back into denary.
how does the complement method work?
Convert the lower number into its Two’s Complement negative format (flip the bits and add one)
Add this to the top number (ignoring any carry)