Computing Theory 3.5 / 5 based on 4 ratings ? ComputingProgrammingGCSEAQA Created by: ex-JohnsonfamilyCreated on: 13-04-15 10:49 What is binary? Binary is a string of numerical values of base 2. 1 of 34 What is '15' in binary? 1111. 2 of 34 What is denary? Denary is a string of numerical values of base 10. 3 of 34 What is '11' in denary? 3 4 of 34 Why do we count in denary? Most people think that it is because we have 10 fingers and have therefore adopted the denary system. 5 of 34 What is a bit? A 1 or 0. 6 of 34 What is a byte? A byte is 8 bits. 7 of 34 What is a nibble? A nibble is 4 bits. 8 of 34 What is a kilobyte? 1024 Bytes. 9 of 34 What is a megabyte? 1000000 Bytes. (1 Million) 10 of 34 What is a gigabyte? 1000000000 Bytes. (1 Billion) 11 of 34 What is a terabyte? 1000000000000 Bytes. (1 Trillion) 12 of 34 What is a petabyte? 1000000000000000 Bytes. (1 Thousand Million) 13 of 34 What is an exabyte? 1000000000000000000 Bytes (1 Million Billion) 14 of 34 What is 10011101 in denary? 157. 15 of 34 What is 1011 in denary? 11. 16 of 34 What is 110111 in denary? 55. 17 of 34 What is 1011011 in denary? 91. 18 of 34 What is 1111111 in denary? 127. 19 of 34 What is 145 in binary? 10010001. 20 of 34 What is 84 in binary? 1010100 21 of 34 What is 100 in binary? 1100100 22 of 34 What is 129 in binary? 10000001 23 of 34 What is 499 in binary? 111110011 24 of 34 In binary, colours can go from which number to which number? 00000000 to 11111111. 25 of 34 Which colour is the strongest in this binary code?: 00000000 11110000 11111111 Blue. 26 of 34 Which colour is the strongest in this binary code?: 11111100 00111111 01010101 Red. 27 of 34 How many shades of red, green and blue are there for each colour? 256. 28 of 34 What is hex short for? Hexadecimal. 29 of 34 What base is hex? 16. 30 of 34 What is ff in denary? 255. 31 of 34 How would you make purple in hex? ff00ff. 32 of 34 What is 100011101110011101100001 in hex? 8ee761 33 of 34 Write an algorithm to find the sum of all the multiples of 3 or 5 below 1000. Use CS Cue Card 1 to find answer. 34 of 34

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