CPU Questions and Answers and correct answers

What is meant by 2.2 ghz? GHz means the processor can complete 2.2 billion, (2,200,000,000), cycles per second. It is the speed of the clock chip in the processor What is meant by dual-core processor? A dual-core processor has two separate processing units that work together to improve the performance of the CPU. Describe how cache memory is used by the CPU? 1)Cache memory is very fast memory that can work at similar speeds to the CPU. 2) It is used to store frequently-accessed data during processing. 3) Data is requested first from cache memory by the processor: if it is not there it is fetched from the main memory and transferred into cache memory for the processor to access quickly when required. State 3 key factors that determine the performance of the CPU. 1. Bus speed 2. amount of RAM, 3. number of processor cores 4. clock speed 5. word size 6. cache memory State what CPU stands for. Central Processing Unit Describe what the ALU does. The ALU (Arithmetic Logic unit) carries out all the arithmetic and logic commands such as ADDITION, SUBTRACTION and COMPARISONS. Describe what the Control unit does. Use electrical signals to get the system to execute the instructions stored in programs What type of memory does the CPU need? 1. RAM 2. Cache memory This is known as main memory or primary storage What is Primary storage? 1) RAM 2) External hard drive 3) ROM 4) Flash drive State 3 types of secondary storage. Hard drive External hard drive Flash drive Solid state drive USB drive