Understanding Number Systems

This video tutorial explains different number systems, focusing on binary and its use in computers. It covers why binary is suitable for computers, compares various number systems like decimal, Maya, and Babylonian, and demonstrates how to convert binary numbers to decimal using place values.

What is the primary reason computers use binary?

• Binary uses more digits, making it more efficient.

• Binary is simple for computers to process as it represents on/off states.

• Binary is easier for humans to understand.

• Binary allows for more complex calculations.

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Which number system uses a combination of lines and dots?

• Maya

• Babylonian

• Binary

• Decimal

Which number system uses 60 digits?

• Binary

• Decimal

• Maya

• Babylonian

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How many digits are used in the decimal number system?

• 20

• 10

• 60

• 2

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What happens in the decimal system when you run out of digits?

• You add a digit in front and start over.

• You switch to binary.

• You use a different set of symbols.

• You start using letters.

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In binary, what comes after the sequence 1, 0, 1?

• 1, 0, 0, 0

• 1, 1, 1

• 1, 1, 0

• 1, 0, 0

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What is the base value used in the binary number system?

• 2

• 20

• 10

• 60

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How do you convert a binary number to a decimal number?

• By adding all the digits together.

• By multiplying each digit by 10.

• By multiplying each digit by 2 and adding the results.

• By reversing the digits.

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What is the decimal equivalent of the binary number 101?

• 7

• 8

• 5

• 6

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What is the first step in converting a decimal number to binary?

• Divide the number by 2.

• Multiply the number by 10.

• Add all the digits together.

• Subtract the number from 100.

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