Question 1: What is the primary purpose of a character set in computer systems?

Answer: A character set defines the mapping between characters (like letters, numbers, symbols) and their corresponding binary codes used by computers to store and process text.

Question 2: Name two common character sets used in computing.

Answer: ASCII and Unicode.

Question 3: In ASCII, what is the binary code for the uppercase letter 'A'?

Answer: 01000001

Question 4: Explain the main difference between ASCII and Unicode character sets.

Answer: ASCII uses 7 bits to represent characters and can encode up to 128 characters, mainly English letters and symbols. Unicode uses up to 32 bits, allowing it to encode a vast number of characters from many languages and symbol sets.

Question 5: Convert the decimal number 65 to its 8-bit binary form as used in ASCII.

Answer: 01000001

Question 6: Describe how Unicode can support multiple languages that ASCII cannot.

Answer: Unicode assigns a unique code point to characters from many different languages and symbols, enabling the representation of a wide variety of scripts and symbols beyond the limited set in ASCII.

Question 7: Complete the truth table for a NOT gate with the following inputs and outputs:

Answer: Input: 0, Output: 1; Input: 1, Output: 0

Question 8: Draw a logic circuit for an AND gate and label the inputs and output.

Answer: A correct sketch would show a standard AND gate shape with two inputs labeled A and B, and a single output labeled Q, with the output being high (1) only when both inputs are high (1).

Question 9: Explain why Unicode is more suitable than ASCII for international applications.

Answer: Unicode can represent characters from many languages and scripts worldwide, whereas ASCII only supports basic English characters and symbols, making Unicode more versatile for global use.

Question 10: Sketch a simple representation of how a character like '€' (Euro sign) might be stored in a Unicode encoding.

Answer: A sketch should show a box labeled 'Unicode code point for €', for example U+20AC, with an arrow pointing to its binary or hexadecimal representation, indicating it is stored as a specific code point in Unicode.

Question 11: List two advantages of using Unicode over ASCII.

Answer: Supports a wide range of characters from many languages; Enables consistent encoding across different systems and platforms.