Understanding Unsigned Binary Numbers

What is the primary characteristic of an unsigned binary number?

• It can only represent even numbers.

• It can only use the numbers 1 and 0.

• It can use any number from 0 to 9.

• It can represent negative numbers.

How is the binary number 101 converted to decimal?

• By using powers of two and adding the results.

• By reversing the digits and converting directly.

• By adding the powers of three.

• By multiplying each digit by 10.

In the binary number 101, which digit represents the 'on' switch for 2^2?

• None of the digits.

• The third digit from the right.

• The second digit from the right.

• The first digit from the right.

What is the decimal equivalent of the binary number 1001?

• 10

• 7

• 8

• 9

Which power of two is represented by the leftmost digit in the binary number 1001?

• 2^0

• 2^1

• 2^3

• 2^2