Character sets and the number of characters which can be stored questions and answers
Q1. How many unique code combinations are there in the 8 bit ASCII character set?
A1. With 8 bits, there are a total of 28 or 256 different combinations of codes.
Q2. How many bits does Unicode use?
A2. There are different forms of Unicode e.g. UTF-8 and UTF-16 using between 16 and 32 bits.
Q3. Approximately, how many unique code combinations are there in the Unicode character set?
A3. 216 or about 65000 different code patterns.
Q4. How many unique code combinations are there in the 7 bit ASCII character set?
A4. 128
Q5. How many characters could you represent if you used a nibble?
A5. 16
Q6. How many characters could you represent if you using 6 bits?
A6. 64
Q7. How many letters are there in the Urdu alphabet?
A7. There are 38.
Q8. How many letters are there in the Japanese alphabet?
A8. Japanese has a mixture of writing systems. There are approximately 10000 Kanji symbols (pictorial characters and based on Chinese symbols).
Q9. How many maths symbols are there?
A9. Estimates vary but it is in the hundreds.
Q10. How many characters could you represent if you using 32 bits?
A10. The calculation is 2 to the power 32. That is a lot of zeros!