# Binary Lesson 7 Review of Binary and Hexadecimal.

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Binary Lesson 7 Review of Binary and Hexadecimal

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

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

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

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

Review of Binary and Hexadecimal iClicker Questions

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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