Sign Magnitude: 10011101 & 11001100 Decimal Value

In summary, the decimal value of a binary number in sign magnitude is determined by the sign bit and the remaining bits representing the magnitude. This allows for the representation of both positive and negative numbers, making it useful in computer science and engineering. However, it is not as efficient as other methods and cannot represent 0 in a unique way.
  • #1
teng125
416
0
for 10011101 and 11001100 ,what is the decimal value in sign magnitude format (8bits) ??
pls help
 
Physics news on Phys.org
  • #2
signed magnitude is basically just binary with the left-most bit reserved for sign: 1 --- negative, 0 ---- positive

so:

10011101 = -29

11001100 = -76
 
Last edited:
  • #3


In sign magnitude format, the first bit represents the sign (0 for positive, 1 for negative) and the remaining 7 bits represent the magnitude. Therefore, for 10011101, the decimal value would be -77 (-1 * 77) and for 11001100, the decimal value would be -204 (-1 * 204). It is important to note that this format is not commonly used in scientific or engineering fields, as it can lead to errors in calculations and is not as efficient as other binary formats. It is typically used in computer systems for representing negative numbers.
 

1. What is the decimal value of 10011101 in sign magnitude?

The decimal value of 10011101 in sign magnitude is -125. The first bit (1) represents the sign, with 1 indicating a negative number. The remaining 7 bits (0011101) represent the magnitude, which can be translated to the decimal value of 29. However, since the sign bit is 1, the overall value is -29.

2. What is the decimal value of 11001100 in sign magnitude?

The decimal value of 11001100 in sign magnitude is -204. The first bit (1) represents the sign, with 1 indicating a negative number. The remaining 7 bits (1001100) represent the magnitude, which can be translated to the decimal value of 76. However, since the sign bit is 1, the overall value is -76.

3. How do you convert a binary number in sign magnitude to its decimal value?

To convert a binary number in sign magnitude to its decimal value, first determine the sign by looking at the first bit. If it is 0, the number is positive and the remaining bits represent the magnitude. If it is 1, the number is negative and the remaining bits represent the magnitude. Then, convert the magnitude to its decimal value. Finally, add a negative sign if the overall value is negative.

4. What are the advantages of using sign magnitude to represent numbers?

One advantage of using sign magnitude to represent numbers is that it allows for the representation of both positive and negative numbers. This is especially useful in computer science and engineering, where negative values are often needed for calculations and data storage. Additionally, sign magnitude is a simple and intuitive way to represent numbers, making it easy for humans to understand and work with.

5. What are the limitations of using sign magnitude to represent numbers?

One limitation of using sign magnitude to represent numbers is that it is not as efficient as other methods, such as two's complement or one's complement. This is because it requires an extra bit to represent the sign, which means fewer bits are available to represent the magnitude. Additionally, sign magnitude cannot represent 0 in a unique way, as both positive and negative numbers have a sign bit of 0. This can lead to confusion and errors in calculations involving 0.

Similar threads

  • Engineering and Comp Sci Homework Help
Replies
2
Views
16K
  • Engineering and Comp Sci Homework Help
Replies
9
Views
954
  • Engineering and Comp Sci Homework Help
Replies
2
Views
4K
Replies
16
Views
1K
  • Engineering and Comp Sci Homework Help
Replies
2
Views
1K
Replies
4
Views
672
  • Introductory Physics Homework Help
2
Replies
42
Views
2K
  • Introductory Physics Homework Help
Replies
6
Views
561
  • Introductory Physics Homework Help
Replies
3
Views
649
  • Engineering and Comp Sci Homework Help
Replies
9
Views
1K
Back
Top