Table of Contents
- 1 What is a BCD code advantages and disadvantages?
- 2 What are the disadvantages of gray code?
- 3 What is the shortcoming of 8421 BCD code?
- 4 What are the advantages and disadvantages of Gray code?
- 5 What is the advantage of Gray code over BCD code?
- 6 Which shortcoming of the 8421 BCD code is overcome in the excess-3 BCD code?
What is a BCD code advantages and disadvantages?
The main advantage of binary coded decimal is that it allows easy conversion between decimal (base-10) and binary (base-2) form. However, the disadvantage is that BCD code is wasteful as the states between 1010 (decimal 10), and 1111 (decimal 15) are not used.
Can BCD be negative?
In the case of an 8-bit byte containing two BCD digits, any value of 5 or above in the most-significant digit represents a negative quantity. For example (assuming the “#” character is used to indicate a BCD number), the BCD values #00 through #49 would be used to represent positive values in the range 0 through +49.
What are the disadvantages of gray code?
Gray Code is Reflective Binary code. One of the main disadvantages of Gray code is that it is very difficult to come up with an arithmetic logic unit to support Gray code.
What are the advantages and disadvantages of gray code?
Advantage of grey code over binary is only one-bit changes for each step. This will be useful in circuits that are sensitive to glitches. Example: When you use grey code to trim the output impedance of IO blocks, their won’t be a huge jump in codes momentarily that would cause reflection.
What is the shortcoming of 8421 BCD code?
It is a self-complementary binary coded decimal (BCD) code and numerical system which has biased representation. It is particularly significant for arithmetic operations as it overcomes shortcoming encountered while using 8421 BCD code to add two decimal digits whose sum exceeds 9.
What is BCD where it is used?
In computing and electronic systems, binary-coded decimal (BCD) is a class of binary encodings of decimal numbers where each digit is represented by a fixed number of bits, usually four or eight. Sometimes, special bit patterns are used for a sign or other indications (e.g. error or overflow).
What are the advantages and disadvantages of Gray code?
What is GREY code and its advantages?
Gray codes are very useful in the normal sequence of binary numbers generated by the hardware that may cause an error or ambiguity during the transition from one number to the next. So, the Gray code can eliminate this problem easily since only one bit changes its value during any transition between two numbers.
What is the advantage of Gray code over BCD code?
In Gray code, if we go from one decimal number to next, only one bit of the gray code changes. Because of this feature, an amount of switching is minimized and the reliability of the switching systems is improved. Advantage of grey code over binary is only one-bit changes for each step.
What are advantages of Gray code?
Which shortcoming of the 8421 BCD code is overcome in the excess-3 BCD code?
It has no limitation, and it considerably simplifies arithmetic operations. It is particularly significant for arithmetic operations as it overcomes shortcoming encountered while using 8421 BCD code to add two decimal digits whose sum exceeds 9.