Converting Decimal to Hexadecimal

The video tutorial explains the decimal and hexadecimal number systems, highlighting their differences and uses. It details the decimal system's reliance on ten digits and the hexadecimal system's use of sixteen digits, including letters A-F. The tutorial emphasizes the efficiency of hexadecimal in computing due to shorter number representations. It provides a simple method for converting decimal numbers to hexadecimal by first converting to binary, then to hexadecimal, using examples to illustrate the process.

What is the base number of the decimal system?

• 2

• 16

• 8

• 10

Why is hexadecimal preferred over binary for representing numbers?

• It is easier to convert to decimal.

• It is the same as binary.

• It uses fewer digits, making numbers shorter and easier to read.

• It is more complex and secure.

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

• Convert to octal first.

• Convert to binary first.

• Convert to a fraction.

• Convert directly to hexadecimal.

In the binary system, what is the value of the place immediately to the left of the units place?

• 16

• 8

• 10

• 2

What is a nibble in the context of binary numbers?

• A single binary digit.

• Eight binary digits.

• Sixteen binary digits.

• Four binary digits.

How is the binary number 0111 converted to hexadecimal?

• F

• 7

• B

• A

What is the hexadecimal representation of the decimal number 123?

• 7B

• 7C

• 9F

• 8A

When converting 233 from decimal to binary, which binary digit is used for the value 128?

• 0

• 1

• 2

• 3

What is the hexadecimal equivalent of the decimal number 233?

• C3

• E9

• F1

• D7

Why is it recommended to write out the hexadecimal number line during an exam?

• To confuse other students.

• To impress the examiner.

• To avoid making silly mistakes.

• To save time.