Question 1: Explain the purpose of a character set in computer systems.

Answer: A character set defines a collection of characters and assigns each a unique code, allowing computers to represent and process text consistently.

Question 2: What is the main difference between ASCII and Unicode character sets?

Answer: ASCII uses 7 or 8 bits to represent characters mainly for English text, supporting 128 or 256 characters, whereas Unicode uses up to 32 bits to support a much wider range of characters from many languages.

Question 3: Convert the letter 'A' to its ASCII binary code.

Answer: 01000001

Question 4: Convert the ASCII binary code 01100011 to its corresponding character.

Answer: c

Question 5: Describe what happens when a computer displays a character that is not included in its current character set.

Answer: The computer may display a replacement character, such as a question mark or a box, or it may show incorrect symbols if it cannot interpret the code properly.

Question 6: Draw a simple diagram showing how the binary code for the letter 'B' is stored in an 8-bit system.

Answer: A correct diagram would show the binary code 01000010 written in an 8-bit register or memory cell, indicating the position of each bit.

Question 7: Complete the truth table for a NOT gate with input A and output B.

Answer: [{"A":0,"B":1},{"A":1,"B":0}]

Question 8: Draw a logic circuit for an AND gate with two inputs and one output. Label the inputs as A and B, and the output as C.

Answer: A correct sketch would show a standard AND gate symbol with two input lines labeled A and B entering the gate, and one output line labeled C leaving the gate.

Question 9: Explain why Unicode is more suitable than ASCII for representing characters in a global application.

Answer: Unicode can encode characters from many different languages and symbols worldwide, making it more versatile for international use compared to ASCII, which only supports basic English characters.

Question 10: Sketch a flowchart that shows the process of converting a character into its binary ASCII code.

Answer: A correct flowchart includes steps: starting with the character, referencing the ASCII table, retrieving the binary code, and displaying or storing the binary value.