What is EBCDIC, and how is it related to BCD? What is ASCII, and how did it originate? Explain the difference between ASCII and Unicode. How many bits does a Unicode character require? Why was Unicode...

What is EBCDIC, and how is it related to BCD? What is ASCII, and how did it originate? Explain the difference between ASCII and Unicode. How many bits does a Unicode character require? Why was Unicode created? How do cyclic redundancy checks work? What is systematic error detection?