Components of a microprocessor?

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Across
  1. 2. A link with multiple lines between different parts of the microprocessor.
  2. 3. Memory that retains data even if the power supply goes off.
  3. 6. The component that holds data in memory as electric charge.
  4. 7. A synchronising device in a microprocessor that produces pulses at precise frequency.
Down
  1. 1. The component that generates pulses to synchronise the bits flowing.
  2. 3. Areas in the ALU where data is held temporarily during processing.
  3. 4. Memory that holds data as long as the power is on.
  4. 5. circuit The component that manipulates bits in the microprocessor.