Flashcards in Character coding schemes Deck (14):
How many different patterns do we need to represent all the characters on a computer keyboard?
How many bits do we need to give us that number of patterns?
How many bits are used in the ASCII coding scheme?
How many bits are used in Extended ASCII?
How many characters can be encoded?
How many bits are used in Unicode?
How many different characters can be represented using Unicode?
Explain why EBCDIC is not as programmer friendly as ASCII
Because the values assigned to sequential assignment of values in binary.
Operations converting uppercase to lower case is easy in ASCII but not easy in EBCDIC.
How many different character codes can be represented using 7-bit ASCII?
Describe what is meant by a character set
Number of characters that can be accepted by a computer system.
Explain why mobile phones that can send emoji would use Unicode instead of ASCII as their character set
Not enough bits in ASCII
Explain two differences between Unicode and ASCII
Unicode and ASCII use different number of bits.
ASCII for standard characters
Unicode - many languages
Explain what is common in Unicode and ASCII
The first byte uses the same characters
State one advantage of using Unicode instead of ASCII
Store more characters, multiple languages 2^16