Question 1: Explain in your own words what a computer's memory does.

Answer: Memory stores data and instructions that the computer uses to perform tasks. It allows quick access to information needed for processing.

Question 2: Name two types of memory used in computers and describe their main differences.

Answer: RAM (Random Access Memory) is temporary memory used for active tasks and is volatile. ROM (Read-Only Memory) is permanent and stores essential system instructions that do not change.

Question 3: List three common types of memory in a computer system and briefly state what each is used for.

Answer: RAM for active data processing, Cache for quick access to frequently used data, and Hard Drive for long-term storage.

Question 4: Complete the following truth table for the AND gate:

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

Question 5: Complete the truth table for the OR gate:

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

Question 6: Draw a simple logic circuit that uses an AND gate and an OR gate to combine two inputs. Label each gate and input.

Answer: A correct sketch would show two inputs labeled A and B, with A and B feeding into an AND gate, and another input B feeding into an OR gate with the output of the AND gate. The outputs of both gates are combined in some way (depending on circuit design).

Question 7: Describe a real-life scenario where an AND gate could be used in everyday technology.

Answer: A security system that only unlocks if both a correct code is entered AND a fingerprint is scanned, ensuring two conditions are met before unlocking.

Question 8: Sketch a truth table for a NOT gate and describe its function.

Answer: A truth table with one input: when input is 0, output is 1; when input is 1, output is 0. The NOT gate inverts the input.

Question 9: Explain how memory is different from storage in a computer system.

Answer: Memory refers to temporary storage used during processing (like RAM), while storage refers to permanent data storage devices (like hard drives or SSDs).

Question 10: Draw a sketch of an example of volatile memory and label it.

Answer: A labeled sketch showing RAM, with annotations indicating 'temporary storage' and 'lost when power is off.'

Question 11: What is the purpose of a logic gate in a computer?

Answer: Logic gates perform basic logical functions that control how signals are processed within a computer circuit.