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Shortcut for Two's Complement Video Lecture | Digital Electronics - Electrical Engineering (EE)
FAQs on Shortcut for Two's Complement Video Lecture - Digital Electronics - Electrical Engineering (EE)
| 1. What is two's complement? |  |
Ans. Two's complement is a mathematical operation used to represent negative numbers in binary form. It is a way of encoding signed integers in binary form, where the most significant bit (MSB) acts as a sign bit. The two's complement of a binary number is obtained by inverting all its bits and adding 1 to the result.
| 2. How is two's complement calculated? | |
Ans. To calculate the two's complement of a binary number, follow these steps:
1. Invert all the bits (change 0s to 1s and vice versa) in the given binary number.
2. Add 1 to the result obtained in step 1.
For example, to find the two's complement of the binary number 1010, we invert the bits to get 0101, and then add 1 to get the final result of 0101 + 1 = 0110.
| 3. Why is two's complement used? | |
Ans. Two's complement is used in computer systems to efficiently perform arithmetic operations on both positive and negative numbers using the same hardware. It simplifies the addition and subtraction operations by eliminating the need for separate circuits for handling signed and unsigned numbers. Additionally, two's complement allows for easy comparison and logical operations between signed integers.
| 4. How are negative numbers represented using two's complement? | |
Ans. In two's complement representation, negative numbers are represented by setting the most significant bit (MSB) as 1. The remaining bits represent the magnitude of the negative number. By using this representation, the same arithmetic operations can be performed on both positive and negative numbers, simplifying the overall computation.
| 5. Can two's complement be used for floating-point numbers? | |
Ans. No, two's complement is primarily used for representing signed integers in binary form. Floating-point numbers follow a different representation and use formats like IEEE 754. Two's complement is not suitable for representing decimal fractions or numbers with a fractional part. For floating-point numbers, specialized formats and representations are used to ensure accuracy and support a wide range of values.
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