3. Convert the binary number 1011012 to a decimal number
Binary to Decimal Conversion Using Positional Notation Method 1:
the rightmost digit is called the 'Least Significant Bit' (LSB)
the left-most digit is called the 'Most Significant Bit' (MSB)
For a binary number with 'n' digits, the least significant bit has a weight of 20 and the most
significant bit has a weight of 2n-1.
5. Binary to Decimal Conversion Using Doubling Method 2
The process of doubling or multiplying by 2.
Step1: in 1011012, the left-most digit is '1'. The double of the previous number is 0. Therefore,
we get ((0 Γ 2) + 1) which is 1.
Step 2: Continue the same process for the next digit also. The second digit from the left is 0.
Now, double the previous digit and add it with the current digit. Therefore, we get, [(1 Γ 2) + 0],
which is 2
6. the binary number 1011012 to a decimal using
the doubling method is 4510
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How to Convert Decimal to Binary?
β Step 1: Divide the given decimal number by 2 and note down the remainder.
β Step 2: Now, divide the obtained quotient by 2, and note the remainder again.
β Step 3: Repeat the above steps until you get 0 as the quotient.
β Step 4: Now, write the remainders in such a way that the last remainder is written
first, followed by the rest in the reverse order.
β Step 5: This can also be understood in another way which states that the Least
Significant Bit (LSB) of the binary number is at the top and the Most Significant Bit
(MSB) is at the bottom. This number is the binary value of the given decimal
number.
11. Convert Hexadecimal to Decimal
The hexadecimal system (shortly hex), uses the number 16 as its base
(radix).
β Obtain the decimal equivalent of hexadecimal from the conversion table.
(table mentioned above)
β Multiply each digit with the power of 16 starting at 0 from the right.
β Add all the numbers together.
14. Hexadecimal to Octal Conversion
β Conversion of hexadecimal to octal cannot be done directly.
β Firstly we need to convert hexadecimal into its equivalent decimal number then
decimal to octal.
Find the equivalent octal form of C116.
C116 = (C Γ 161) + (1 Γ 160)
= C Γ 16 + 1 Γ 1
=12 Γ 16 + 1
= 192 + 1
C116 =193 (Decimal form) Hence, C116 = 3018
15. Method 2
β For each given hexadecimal number digit, write the equivalent binary
number. If any of the binary equivalents are less than 4 digits, add 0βs
to the left side.
β Combine and make the groups of binary digits from right to left, each
containing 3 digits. Add 0βs to the left if there are less than 3 digits in
the last group.
β Find the octal equivalent of each binary group.
16. Convert 1BC16 into an octal number.
1 β 0001, B β 1011, C β1100
Now group them from right to left, each having 3 digits.
000, 110, 111, 100
000β0, 110 β6, 111β7, 100β4
1BC16 = 6748