Technology Systems (Learning Aim B)

What is the primary purpose of the CPU?

• To store data permanently
• To perform arithmetic and logic operations
• To execute instructions and process data
• To manage input and output devices

Which component of the CPU directs the flow of instructions and data?

• Arithmetic Logic Unit
• Control Unit
• Cache Memory
• Program Counter

What is the role of the Arithmetic Logic Unit (ALU)?

• Storing frequently used instructions
• Performing calculations and logical comparisons
• Managing the system clock speed
• Fetching data from storage

What is cache memory used for?

• Long-term storage of files
• Temporary storage for frequently accessed data
• Managing system input and output
• Saving files permanently

How is RAM different from ROM?

• RAM is volatile, and ROM is non-volatile
• RAM stores data permanently, ROM does not
• ROM can be written to, but RAM cannot
• ROM is faster than RAM

What does "volatile" mean in computing?

• Memory that can only be read, not written
• Data is erased when power is turned off
• Data is stored permanently
• Memory that processes data faster

Which of the following represents both reading and writing in a computer?

• Receiving data from a keyboard
• Saving a document to a hard drive
• Playing a music file
• Displaying an image on a monitor

Which type of storage uses spinning disks to store data?

• Solid-state drives
• Flash drives
• Optical discs
• Magnetic hard drives

What is the function of the Memory Data Register (MDR)?

• To store the address of data to be accessed
• To hold data that is being transferred
• To perform arithmetic operations
• To manage the control signals

What does the control bus do?

• Carries memory addresses
• Transfers data between components
• Sends commands to control devices
• Transfers electrical power to components