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Binary Lesson 7 Review of Binary and Hexadecimal

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Four Bits Make a Nybble 1 0 0 1 A nybble can be represented by one hexadecimal digit Values from 0 to 15, or 0 to F 8s 4s2s1s

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Counting to 15 Base Two Base TenBase Two Base Ten Base Two Base TenBase Two Base Ten 0 0 1000 8 0 0 1000 8 1 1 1001 9 1 1 1001 9 10 2 1010 10 10 2 1010 10 11 3 1011 11 11 3 1011 11 100 4 1100 12 100 4 1100 12 101 5 1101 13 101 5 1101 13 110 6 1110 14 110 6 1110 14 111 7 1111 15 111 7 1111 15

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Eight Bits Make a Byte 1 0 0 1 1 0 0 1 So this number is 128 + 16 + 8 + 1 = 153 8s4s2s1s8s4s2s8s4s1s2s8s4s 16s32s 128s 64s16s32s64s16s32s One nybble: 0 through F One nybble: 0 through F

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Two hexadecimal digits make a byte 1 0 0 1 1 0 0 1 So this number is $99 = 9*16 + 9 = 144+9 = 153 One nybble: 0 through F # of 16s One nybble: 0 through F # of 1s

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Review of Binary and Hexadecimal iClicker Questions

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What is 12 in hexadecimal? A.12 B.0x12 C.0x0A D.0x0C E.0b0110

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What is 0b1111 in decimal? A.11 B.13 C.15 D.0x0F E.Something else

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What is 0x0A in binary? A.10 B.0b10 C.0x10 D.9 E.Something else

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What is 128 in binary? A.0b10000000 B.0b11000000 C.0b11100000 D.0b11110000 E.Something else

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What is 192 in binary? A.0b10000000 B.0b11000000 C.0b11100000 D.0b11110000 E.Something else

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What is 160 in hex? A.0x0A B.0x10 C.0xA0 D.0xAA E.Something else

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What is 168 in hex? A.0x0A B.0xA2 C.0xA8 D.0xAA E.Something else

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What is 0xFF in binary? A.0b11001100 B.0b11101110 C.0b11111111 D.0b10001000 E.Something else

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What is 129 in binary? A.0b01111111 B.0b10000000 C.0b10000001 D.0b10000010 E.Something else

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What is 90 in binary? A.0b11000000 B.0b01010000 C.0b01011000 D.0b01011010 E.Something else

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What is 63 in hex? A.0x30 B.0x39 C.0x3F D.0x41 E.Something else

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What is 201 in hex? A.0xA1 B.0xC1 C.0xC9 D.0xCF E.Something else

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What is 0xF1 in binary? A.0b11111111 B.0b11101110 C.0b11110011 D.0b11110001 E.Something else

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What is 0xCD in decimal? A.192 B.200 C.206 D.208 E.Something else

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