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

Answer: A character set defines how characters are represented in binary form so computers can store and process text data.

Question 2: In the ASCII character set, what binary code represents the uppercase letter 'A'?

Answer: 01000001

Question 3: Explain the difference between ASCII and Unicode character sets.

Answer: ASCII uses 7 or 8 bits to represent characters and includes basic English characters, while Unicode uses a larger range of bits to include characters from many different languages and symbols.

Question 4: Convert the character 'z' into its ASCII binary code.

Answer: 01111010

Question 5: Describe a situation where Unicode is more suitable than ASCII.

Answer: Unicode is more suitable when working with multiple languages and special symbols, such as Chinese characters, emojis, or mathematical symbols, which ASCII cannot represent.

Question 6: What is the main limitation of using only ASCII character set in modern computers?

Answer: ASCII cannot represent characters from many languages or include special symbols, limiting its use in a global context.

Question 7: Complete the truth table for a logic gate where A and B are inputs, and the output is true only when both A and B are true.

Answer: A | B | Output ---|---|-------- 0 | 0 | 0 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1

Question 8: Draw a logic circuit for an AND gate using basic logic symbols. Label your inputs and output.

Answer: A correct sketch should show a standard AND gate symbol with two inputs labeled A and B on the left, and one output on the right, with the output line connecting to the gate.

Question 9: Sketch a diagram to illustrate how a character from the Unicode set might be stored in a computer using binary code.

Answer: A correct sketch should include a character (e.g., a smiley face), its binary representation (e.g., a sequence of 16 or more bits), and an arrow pointing to how this binary code is stored in memory.

Question 10: Explain why Unicode uses more bits than ASCII to represent characters.

Answer: Unicode uses more bits to accommodate a vast range of characters, symbols, and scripts from many languages around the world, unlike ASCII which only supports basic English characters.

Question 11: Identify the character set most likely used by a smartphone to support multiple languages, emojis, and special symbols.

Answer: Unicode

Question 12: Describe how binary codes are used to store characters in a computer system.

Answer: Each character is assigned a unique binary code in the character set. This binary code is stored in memory, allowing the computer to retrieve and display the correct character when needed.