Question

In: Computer Science

23. ASCII is a 7-bit code, while Unicode is a 16-bit code. True or False? Explain...

23. ASCII is a 7-bit code, while Unicode is a 16-bit code. True or False? Explain

24. Binary-coded decimal (BCD) can be used to store two decimal digits in one byte. True or False? Explain

25. Reed-Solomon codes can effectively deal with burst errors. True or False? Explain

26. Hamming Codes are used for __________ bit errors. Explain

27. Describe the Principle of Equivalence of Software and Hardware. What is the caveat to it? Explain

Expert Solution

23.TRUE

ASCII uses 7 bits to store each character.This gives ASCII the ability to store a total of 2^7=128 different values.

The problem with ASCII is that it only allows you to represent a small number of characters,so Unicode is a 16 bit code which can store more number of characters.

24.TRUE

Binary-coded decimal assigns 4 digit binary code to each digit 0 to 9 in a decimal,So in one byte we have 8 bits so we can write 2 numbers each using 4 bits.For example suppose we have a number 18 so its equivalent BCD codes are

0001 1000

1 8

25.TRUE

Read-solomon codes used to correct burst errors means where a codeword series are received in error.Algebric decoding procedures of read-solomon codes can correct these errors.

26.Detect and Correct

Hamming codes is a set of codes which is used to detect and correct errors when data is placed from one place to another.It uses extra parity bit to detect error.

27.Principle of Equivalence of Software and Hardware- This principle states that anything that can be done with software can also be done with hardware and vice-versa.

Both software and hardware are important as an embedded system is a combination of both.For some tasks we need hardware and to control hardware we need some software.Design one circuit and we can use in both hardware and software.

If you have any doubts in any of the part let me know.Please rate my answer. Thank you so much.

venereology answered 16 hours ago

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