Question 1: Name two types of storage devices commonly used in modern computers and briefly describe their primary use.

Answer: Examples include Hard Disk Drive (HDD) and Solid State Drive (SSD). HDDs are used for large data storage with mechanical parts, while SSDs are faster, more durable storage devices without moving parts.

Question 2: Explain the main difference between volatile and non-volatile storage devices.

Answer: Volatile storage requires power to maintain data (e.g., RAM), whereas non-volatile storage retains data even when power is off (e.g., SSD, HDD).

Question 3: Describe the purpose of a CD/DVD drive in a computer system.

Answer: A CD/DVD drive reads and writes data to optical discs, allowing for data storage, media playback, and software installation.

Question 4: Complete the following truth table for an AND gate: | Input A | Input B | Output | |---------|---------|---------| | 0 | 0 | ? | | 0 | 1 | ? | | 1 | 0 | ? | | 1 | 1 | ? |

Answer: 0, 0, 0, 1

Question 5: Draw a logic circuit diagram for a circuit that uses an OR gate and a NOT gate to produce a specific output. Label all parts clearly.

Answer: A correct sketch would show an OR gate with two inputs, and the output of this OR gate fed into a NOT gate. The final output is from the NOT gate.

Question 6: Sketch a diagram of a typical solid-state drive (SSD), labeling the main components involved in data storage.

Answer: A correct sketch would include a memory chip array (NAND flash memory), a controller, interface connectors (e.g., SATA or NVMe), and possibly a cache memory chip.

Question 7: Explain why SSDs are generally faster than traditional HDDs.

Answer: SSDs have no moving parts and use flash memory, which allows for quicker data access and transfer speeds compared to the mechanical parts in HDDs.

Question 8: Describe what is meant by 'storage capacity' in the context of storage devices.

Answer: Storage capacity refers to the amount of data a storage device can hold, typically measured in gigabytes (GB) or terabytes (TB).

Question 9: Describe how a USB flash drive stores data and mention one advantage of using it over a CD.

Answer: A USB flash drive stores data in non-volatile flash memory chips. An advantage over CDs is that it is more durable, has higher storage capacity, and allows for faster data transfer.

Question 10: Design a simple truth table for a NAND gate with two inputs. Fill in the output column.

Answer: Inputs: 0,0, 0,1, 1,0, 1,1 Outputs: 1, 1, 1, 0