Which CPU component stores instructions and data currently in use?
- Control unit
- Registers
- Arithmetic logic unit
- Cache memory
Which of the following devices would not typically contain an embedded system?
- A digital alarm clock
- A car
- A microwave oven
- A light switch
Which device is commonly used for both input and output functions?
- Mouse
- Scanner
- Touchscreen
- USB flash drive
Which statement accurately describes embedded systems?
- Designed for general-purpose computing tasks
- Primarily used in large-scale data centres
- Specialised for specific functions within a larger system
- Focused on gaming applications
Which register holds the memory address of the next instruction to be fetched from memory?
- Program counter
- Memory address register
- Memory data register
- Accumulator
Which level of CPU cache is closest to the processor core and typically the smallest in size?
- L1 cache
- L2 cache
- L3 cache
- RAM
What does CPU clock speed represent?
- The number of processor cores
- The speed of data transfer between CPU and RAM
- The frequency at which the CPU processes instructions
- The size of the CPU cache
How does the efficiency of the fetch-decode-execute cycle impact a computer's processing speed?
- Slows down processing speed
- No impact on processing speed
- Optimisations contribute to faster performance
- Reduces memory storage
What does CPU stand for?
- Central Processing Unit
- Computer Processing Unit
- Core Processing Unit
- Calculation Processing Unit
Which phase retrieves the next instruction from the computer's memory and places it into the CPU?
- Decode
- Execute
- Fetch
- Store
