UNIT 2.6 DATA REPRESENTATION

Q1: What numeric base does Binary operate on? (1-4) ü

• 2
• 1
• 8
• 16

Q2: How many bits are there in a byte? (1-4) ü

• 8
• 16
• 1
• 2

Q3: What is the maximum number of bits needed to represent 15 in denary? (3-5)

• 6
• 4

Q4: What is the 8 bit binary representation of 17? (5-7) ü

• 10010
• 10001
• 1101
• 100010

Q5: What is the binary representation of 32? (5-7) ü

• 100000
• 100100
• 110000
• 100001

Q6: What is the Denary representation of this 8 bit number? 01001111 (5-7)

• 59
• 79
• 69
• 49

Q7: Q7: What is the Denary representation of this 8 bit number? 11010101 (5-7)

• 199
• 206
• 228
• 213

Q8: How Bytes are there in a Terabyte? (5-7) ü

• 1024 Kilobytes
• 1024 Megabytes
• 1024 Gigabytes

Q9: Why do we use the binary number system in Computing? (4-6) ü

• Because a CPU has two transistors
• To represent the two different states of transistors
• To allow the CPU to be in one of two states

Q10: What is the hex number 6B in binary? (6-8) ü

• 1101011
• 10101110
• 1110111