Using binary 0.0 / 5 ? ComputingComputer systemsGCSEEdexcel Created by: Epic AlCreated on: 20-06-22 19:22 What is a nibble? A group of 4 bits 1 of 12 What is a byte? A group of 8 bits 2 of 12 How many combinations are there in 3 bits? 8 combinations (2^3) 3 of 12 How many combinations are there in 8 bits? 128 bits (2^8) 4 of 12 How do you convert denary to binary using Two's Complement? 1.write it as a positive unsigned integer 2. Flip the bits 3. add 1 5 of 12 how do you convert binary to denary using two's complement? 1. flip the bits 2. add 1 3. convert binary to denary 4. denary x -1 6 of 12 What are the rules of binary addition? 0 + 0 = 0 1 + 0 = 1 1 + 1 = 0 (1) 1 + 1 + 1 = 1 (1) 7 of 12 How do you perform a logical shift to the left? Each digit moves to the left, any new spaces on the right are replaced with 0's 8 of 12 How do you perform a logical shift to the right? Each digit moves to the right, any new spaces on the left are replaced with 0's 9 of 12 what is overflow? when an operation produces a result that requires more bits to store it than available in a computer 10 of 12 how do you represent an overflow in addition? (1)10101010 11 of 12 what are the hexadecimal values? 1-9 = 1-9 10 - 15 = ABCDEF 12 of 12
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